{"id":21242,"date":"2021-01-27T08:43:33","date_gmt":"2021-01-27T06:43:33","guid":{"rendered":"https:\/\/commaik.de\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/"},"modified":"2025-12-06T11:59:51","modified_gmt":"2025-12-06T09:59:51","slug":"drying-basement-new-submersible-pump-destroyed-after-1-month","status":"publish","type":"post","link":"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/","title":{"rendered":"New submersible pump defective &#8211; draining the cellar"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Content<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Submersible_pump_broken_after_one_month\" >Submersible pump broken after one month<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Video_Pump_in_soakaway_defective\" >Video: Pump in soakaway defective<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#The_pump_sucks_in_stones\" >The pump sucks in stones<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Repairing_the_submersible_pump_with_tape_and_sealant\" >Repairing the submersible pump with tape and sealant<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#The_water_runs_back\" >The water runs back<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Retrofit_check_valve_for_the_pump\" >Retrofit check valve for the pump<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Risks_when_installing_the_non-return_valve\" >Risks when installing the non-return valve<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Optimize_pump_protection_in_the_soakaway\" >Optimize pump protection in the soakaway<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Alternatives_for_avoiding_particles_in_the_pump\" >Alternatives for avoiding particles in the pump<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#New_INOX_pump_for_the_soakaway\" >New INOX pump for the soakaway<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Karcher_INOX_pump\" >K\u00e4rcher INOX pump<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#Summary_and_conclusion\" >Summary and conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/commaik.de\/en\/2021\/01\/drying-basement-new-submersible-pump-destroyed-after-1-month\/#FAQ_about_the_pump_sump_and_submersible_pump\" >FAQ about the pump sump and submersible pump<\/a><\/li><\/ul><\/nav><\/div>\n<p>Two months ago I built a sump pit <a href=\"https:\/\/commaik.de\/2021\/01\/keller-trockenlegen-pumpensumpf-sickerschacht-selber-bauen\/\">with a sump pump in my cellar<\/a> to collect the water seeping into it and further dry out my cellar.<\/p><div id=\"comma-195553363\" class=\"comma-inhalt comma-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3563316148321376\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-3563316148321376\" \ndata-ad-slot=\"6867259082\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>\n<p>A submersible pump with an integrated float switch should then pump the water out via a hose.<\/p>\n<p>Unfortunately, things turned out quite differently. The new submersible pump in the pump sump was defective after just a few weeks. Read this article to find out why the pump was destroyed and how the draining process continued.<!--more--><\/p>\n<p>During my regular routine checks on and in the house, I always checked the function of the pump and the water level in the pump shaft. The submersible pump worked safely and reliably for over a month.<\/p>\n<p>However, my Home Assistant system recently informed me of unexpectedly high power consumption. The cause was the new pump, which no longer switched off automatically. It also made rattling noises that gave the impression that it was about to malfunction.<\/p>\n<p>I had obviously made a serious mistake when creating the pump sump.<\/p>\n<hr \/>\n<h4><\/h4>\n<h2><span class=\"ez-toc-section\" id=\"Submersible_pump_broken_after_one_month\"><\/span>Submersible pump broken after one month<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The affected cellar, damp and located below the actual cellar, is in a house that was built in 1900. Despite the exterior walls being drained, this cellar always remained damp, as water penetrated from below during heavy rainfall.<\/p>\n<p>To collect this water, I built a sump pump in a corner of the cellar a month ago. The water was able to collect in a drainage pipe and was then pumped out automatically.<\/p>\n<p>The matching article can be found here: <a href=\"https:\/\/commaik.de\/2021\/01\/keller-trockenlegen-pumpensumpf-sickerschacht-selber-bauen\/\" target=\"_blank\" rel=\"noopener\">Draining the cellar &#8211; pump sump | Build your own soakaway<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>I directed the pumped-out water into the garden using a \u00be-inch garden hose. We recently had another heavy and prolonged downpour of snow and rain, which caused the water to push into the cellar again from below.<\/p>\n<p>This morning I noticed that the pump wouldn&#8217;t switch off after pumping out the water and was rattling very loudly.<\/p>\n<p>There was obviously a fault. I then removed the pump from the sump and dismantled it on my workbench, where the problem finally became apparent.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<div id='gallery-1' class='gallery galleryid-21242 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_5-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_5-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A small, empty concrete room with rough, cracked and stained walls and floors showing signs of water damage and decay - ideal for draining or installing a sump pump. The photo is taken from above, looking into the corner. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_5-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_5-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_5-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_11-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_11-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Damp patches and water stains on the concrete floor and lower wall of a basement or unfinished stairwell indicate a possible water leak - consider draining or installing a sump pump. Concrete steps are visible in the corner. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_11-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_11-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_11-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_10-1-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_10-1-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"In the corner of a neglected room, a damp, stained concrete floor meets two peeling, discolored walls. Exposed plaster and water damage indicate a defective pump, which makes the room unfinished and dilapidated. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_10-1-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_10-1-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_10-1-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_20-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_20-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A square, empty concrete sump with two wooden beams running across the top and an orange bucket in the middle of the floor. The rough, worn walls show small openings on two sides, which were often used to drain flooded areas. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_20-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_20-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_20-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_22-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_22-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A vertical orange-brown pipe, possibly a pump sump for draining, is set into a concrete surface surrounded by a square of gravel and sandy soil. The sunlight casts a shadow on part of the scene. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_22-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_22-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_22-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_23-scaled.jpg'><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_23-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"An orange plastic bucket sits in the corner of a bare room with textured, unfinished brown walls and a stained concrete floor, hinting at recent draining efforts or use as a simple sump pump solution. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_23-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_23-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_bauen_23-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-container atkp-wide-box  atkp-template-wide\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/316hyfC5zHL._SL160_.jpg\" alt=\"Einhell Schmutzwasserpumpe GE-DP 7935 N-A\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                                            <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B0798F3N7H?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (wide, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">Einhell Schmutzwasserpumpe GE-DP 7935 N-A*<\/a>\n                                        <div class=\"atkp-author\">by Einhell Germany AG<\/div>\n\n                    <div class=\"atkp-description\"><ul>\n<li>Leistung \u2013 Die Einhell Schmutzwasserpumpe GE-DP 7935 N-A verf\u00fcgt \u00fcber einen 790-Watt-Motor, der eine max. F\u00f6rderleistung von 19.000 l\/h und eine max. F\u00f6rderh\u00f6he von 9 m erm\u00f6glicht.<\/li>\n<li>2-in-1 \u2013 Die Pumpe eignet sich sowohl f\u00fcr Schmutzwasser mit einer max. Partikelgr\u00f6\u00dfe von \u00d8 35 mm als auch f\u00fcr Klarwasser, etwa beim Abpumpen von Gartenteichen oder Swimmingpools.<\/li>\n<li>Anschl\u00fcsse \u2013 Die Pumpe verf\u00fcgt \u00fcber einen Druckanschluss mit G1\u00bd Au\u00dfengewinde (47,8 mm) und wird inkl. Universaladapter f\u00fcr 38-mm-Schl\u00e4uche (1\u00bd) geliefert.<\/li>\n<li>Aquasensor \u2013 Der Sensor ist in drei H\u00f6hen einstellbar, startet die Pumpe ab einem Wasserstand von ca. 70 mm und schaltet sie bei einem Restwasserstand von ca. 40 mm automatisch ab.<\/li>\n<li>R\u00fcckschlagventil \u2013 Das im Schlauchadapter integrierte R\u00fcckschlagventil verhindert den R\u00fccklauf des gef\u00f6rderten Wassers. Die hochwertige Gleitringdichtung ist in der Pumpe verbaut.<\/li>\n<li>Transport \u2013 Der gro\u00dfe Tragegriff und die integrierte Aufh\u00e4nge\u00f6se sorgen f\u00fcr einen einfachen Transport sowie eine schnelle und komfortable Einsatzbereitschaft.<\/li>\n<li>Kabelaufwicklung \u2013 Das 10 m lange Anschlusskabel kann direkt am Pumpengeh\u00e4use aufgewickelt werden und erm\u00f6glicht so eine ordentliche, platzsparende Aufbewahrung.<\/li>\n<\/ul>\n\n\n                                                    <div class=\"atkp-procontra\">\n                                                                                            <\/div>\n                                            <\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\">List Price: &euro; 144.95<\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\">You Save: &euro; 37.06 (-26%)<\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 107.89\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                    \n                                            <a href=\"https:\/\/www.amazon.de\/dp\/B0798F3N7H?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (wide, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                                            <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 00:48 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Video_Pump_in_soakaway_defective\"><\/span>Video: Pump in soakaway defective<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I recorded the repair of the defective pump and the further optimizations to my pump shaft in a video and published it on my YouTube channel.<\/p>\n<p>By the way, you can find many more videos on this important topic in my playlist on the project <a href=\"https:\/\/www.youtube.com\/watch?v=iFVyWcr4CpE&amp;list=PLPz3dSjkl_ukFzM5rv8PKpoPhBPqH8anL&amp;index=6\" target=\"_blank\" rel=\"noopener\">Drying out the basement<\/a>.<\/p>\n<p>If you want to see more of me and my projects, feel free to check out my <a href=\"https:\/\/youtube.com\/commaik\" target=\"_blank\" rel=\"noopener\">YouTube channel<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<div class=\"epyt-video-wrapper\">\n<div  id=\"_ytid_40317\"  width=\"960\" height=\"540\"  data-origwidth=\"960\" data-origheight=\"540\" data-facadesrc=\"https:\/\/www.youtube.com\/embed\/VG9P4W4hySE?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=0&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__ epyt-facade epyt-is-override  no-lazyload\" data-epautoplay=\"1\" ><img decoding=\"async\" data-spai-excluded=\"true\" class=\"epyt-facade-poster skip-lazy\" loading=\"lazy\" alt=\"YouTube player\" src=\"https:\/\/i.ytimg.com\/vi\/VG9P4W4hySE\/maxresdefault.jpg\" title=\"\"><button class=\"epyt-facade-play\" aria-label=\"Play\"><svg data-no-lazy=\"1\" height=\"100%\" version=\"1.1\" viewBox=\"0 0 68 48\" width=\"100%\"><path class=\"ytp-large-play-button-bg\" d=\"M66.52,7.74c-0.78-2.93-2.49-5.41-5.42-6.19C55.79,.13,34,0,34,0S12.21,.13,6.9,1.55 C3.97,2.33,2.27,4.81,1.48,7.74C0.06,13.05,0,24,0,24s0.06,10.95,1.48,16.26c0.78,2.93,2.49,5.41,5.42,6.19 C12.21,47.87,34,48,34,48s21.79-0.13,27.1-1.55c2.93-0.78,4.64-3.26,5.42-6.19C67.94,34.95,68,24,68,24S67.94,13.05,66.52,7.74z\" fill=\"#f00\"><\/path><path d=\"M 45,24 27,14 27,34\" fill=\"#fff\"><\/path><\/svg><\/button><\/div>\n<\/div>\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-product-carousel-unit atkp-product-carousel-unit-6abb4279700d5  atkp-template-carousel\" id=\"atkp-product-carousel\"  data-uid=\"6abb4279700d5\">\r\n    \r\n    <!-- Title of the ad localized according to the marketplace picked from the AalbHeader tag-->\r\n    <div class=\"atkp-pc-wrapper atkp-pc-wrapper-6abb4279700d5\">\r\n        <div class=\"atkp-pc-product-container atkp-pc-product-container-6abb4279700d5\">\r\n            <ul class=\"atkp-pc-product-list atkp-pc-product-list-6abb4279700d5\">\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41z2ppS7esL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41z2ppS7esL._SL160_.jpg\" alt=\"K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe\">\r\n                                    K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 122.60<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0053NXDIU?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Makita GA9050R Winkelschleifer 230 mm, 2.000 W, Schwarz, Cyan, Silber, (L x B x H) 455 x 250 x 132 mm\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31VTKdTepyL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/31VTKdTepyL._SL160_.jpg\" alt=\"Makita GA9050R Winkelschleifer 230 mm, 2.000 W, Schwarz, Cyan, Silber, (L x B x H) 455 x 250 x 132 mm\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0053NXDIU?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Makita GA9050R Winkelschleifer 230 mm, 2.000 W, Schwarz, Cyan, Silber, (L x B x H) 455 x 250 x 132 mm\">\r\n                                    Makita GA9050R Winkelschleifer 230 mm, 2.000 W, Schwarz, Cyan, Silber, (L x B x H) 455 x 250 x 132 mm*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\"><\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B079N8KRC2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51QvfT8axEL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/51QvfT8axEL._SL160_.jpg\" alt=\"Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B079N8KRC2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz\">\r\n                                    Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 15.99<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B08DG3QLFF?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Messing Reduzierst&uuml;ck 1 1\/4 Zoll IG x 3\/4 Zoll AG Rohrgewinde ISO 228 - Adapter aus Messing f&uuml;r gro&szlig;es Innengewinde auf kleines Au&szlig;engewinde\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41sbVnFMoyL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41sbVnFMoyL._SL160_.jpg\" alt=\"Messing Reduzierst&uuml;ck 1 1\/4 Zoll IG x 3\/4 Zoll AG Rohrgewinde ISO 228 - Adapter aus Messing f&uuml;r gro&szlig;es Innengewinde auf kleines Au&szlig;engewinde\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B08DG3QLFF?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Messing Reduzierst&uuml;ck 1 1\/4 Zoll IG x 3\/4 Zoll AG Rohrgewinde ISO 228 - Adapter aus Messing f&uuml;r gro&szlig;es Innengewinde auf kleines Au&szlig;engewinde\">\r\n                                    Messing Reduzierst&uuml;ck 1 1\/4 Zoll IG x 3\/4 Zoll AG Rohrgewinde ISO 228 - Adapter aus Messing f&uuml;r gro&szlig;es Innengewinde auf kleines Au&szlig;engewinde*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\"><\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B07BJL3594?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Kanaldeckel DN315\/315mm Schachtdeckel 7,5T KG Rohr Schachtabdeckung Gully Schacht\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51-i4USowuL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/51-i4USowuL._SL160_.jpg\" alt=\"Kanaldeckel DN315\/315mm Schachtdeckel 7,5T KG Rohr Schachtabdeckung Gully Schacht\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B07BJL3594?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Kanaldeckel DN315\/315mm Schachtdeckel 7,5T KG Rohr Schachtabdeckung Gully Schacht\">\r\n                                    Kanaldeckel DN315\/315mm Schachtdeckel 7,5T KG Rohr Schachtabdeckung Gully Schacht*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 23.99<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00IMJIY5O?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"tecuro Doppelnippel, beidseitig Aussengewinde G 3\/4 Zoll, Messing blank CW617N nach Trinkwasserverordnung 50930-6, warmgepresst\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51knR2hUnTL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/51knR2hUnTL._SL160_.jpg\" alt=\"tecuro Doppelnippel, beidseitig Aussengewinde G 3\/4 Zoll, Messing blank CW617N nach Trinkwasserverordnung 50930-6, warmgepresst\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00IMJIY5O?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"tecuro Doppelnippel, beidseitig Aussengewinde G 3\/4 Zoll, Messing blank CW617N nach Trinkwasserverordnung 50930-6, warmgepresst\">\r\n                                    tecuro Doppelnippel, beidseitig Aussengewinde G 3\/4 Zoll, Messing blank CW617N nach Trinkwasserverordnung 50930-6, warmgepresst*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 5.18<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY99NHS?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41PVzEW44CL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41PVzEW44CL._SL160_.jpg\" alt=\"K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor\" title=\"\">\r\n                                                                             <!-- The section tag ensures that percentage savings is displayed only if it is available -->\r\n                                            <span class=\"atkp-pc-percent-off\">\r\n                                              -49%\r\n                                            <\/span>\r\n                                                                                                            <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY99NHS?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor\">\r\n                                    K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 94.69<\/span>\r\n                                <\/div>\r\n                                                                                                                            <div class=\"atkp-pc-product-list-price\">\r\n                                        <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                        instead of: <span\r\n                                                class=\"atkp-pc-product-list-price-value\">&euro; 184.99<\/span>\r\n                                    <\/div>\r\n                                                            \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B07T6HV9SR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31yQ+KuTlBL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/31yQ+KuTlBL._SL160_.jpg\" alt=\"KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B07T6HV9SR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)\">\r\n                                    KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 38.00<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B06X3V34PV?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Bosch Accessories Professional Diamanttrennscheibe Standard for Universal (Beton und Mauerwerk, 230 x 22,23 mm, Zubeh&ouml;r Winkelschleifer)\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41i9Fg3sAXL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41i9Fg3sAXL._SL160_.jpg\" alt=\"Bosch Accessories Professional Diamanttrennscheibe Standard for Universal (Beton und Mauerwerk, 230 x 22,23 mm, Zubeh&ouml;r Winkelschleifer)\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B06X3V34PV?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Bosch Accessories Professional Diamanttrennscheibe Standard for Universal (Beton und Mauerwerk, 230 x 22,23 mm, Zubeh&ouml;r Winkelschleifer)\">\r\n                                    Bosch Accessories Professional Diamanttrennscheibe Standard for Universal (Beton und Mauerwerk, 230 x 22,23 mm, Zubeh&ouml;r Winkelschleifer)*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 23.99<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B09CYDPXRF?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Horizontalsperre - Nachf&uuml;llkanister (25 L) - Verkieselungsmittel f&uuml;r Keller- Mauerwerkstrockenlegung WINTER ANGEBOT!\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31B4pNqegKL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/31B4pNqegKL._SL160_.jpg\" alt=\"Horizontalsperre - Nachf&uuml;llkanister (25 L) - Verkieselungsmittel f&uuml;r Keller- Mauerwerkstrockenlegung WINTER ANGEBOT!\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B09CYDPXRF?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Horizontalsperre - Nachf&uuml;llkanister (25 L) - Verkieselungsmittel f&uuml;r Keller- Mauerwerkstrockenlegung WINTER ANGEBOT!\">\r\n                                    Horizontalsperre - Nachf&uuml;llkanister (25 L) - Verkieselungsmittel f&uuml;r Keller- Mauerwerkstrockenlegung WINTER ANGEBOT!*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\"><\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B076WVTWHR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Gardena Premium Hahnverbinder 26,5 mm (G 3\/4 Zoll): Adapter f&uuml;r Wasserh&auml;hne, wertiges Metall, spritzfreier Wasserfluss, frostsicher, verpackt (18241-20)\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41JP9F1UrSL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41JP9F1UrSL._SL160_.jpg\" alt=\"Gardena Premium Hahnverbinder 26,5 mm (G 3\/4 Zoll): Adapter f&uuml;r Wasserh&auml;hne, wertiges Metall, spritzfreier Wasserfluss, frostsicher, verpackt (18241-20)\" title=\"\">\r\n                                                                             <!-- The section tag ensures that percentage savings is displayed only if it is available -->\r\n                                            <span class=\"atkp-pc-percent-off\">\r\n                                              -17%\r\n                                            <\/span>\r\n                                                                                                            <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B076WVTWHR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Gardena Premium Hahnverbinder 26,5 mm (G 3\/4 Zoll): Adapter f&uuml;r Wasserh&auml;hne, wertiges Metall, spritzfreier Wasserfluss, frostsicher, verpackt (18241-20)\">\r\n                                    Gardena Premium Hahnverbinder 26,5 mm (G 3\/4 Zoll): Adapter f&uuml;r Wasserh&auml;hne, wertiges Metall, spritzfreier Wasserfluss, frostsicher, verpackt (18241-20)*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 7.49<\/span>\r\n                                <\/div>\r\n                                                                                                                            <div class=\"atkp-pc-product-list-price\">\r\n                                        <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                        instead of: <span\r\n                                                class=\"atkp-pc-product-list-price-value\">&euro; 8.99<\/span>\r\n                                    <\/div>\r\n                                                            \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00SYJB7Y2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pKko0BoNL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41pKko0BoNL._SL160_.jpg\" alt=\"VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00SYJB7Y2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG\">\r\n                                    VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 12.90<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B09SXZJG5Z?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Beton-ABC 10 Injektionsbeh&auml;lter, leere Injektionsflaschen f&uuml;r Injektionsverfahren mit Horizontalsperre\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31NBkcV4M8L._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/31NBkcV4M8L._SL160_.jpg\" alt=\"Beton-ABC 10 Injektionsbeh&auml;lter, leere Injektionsflaschen f&uuml;r Injektionsverfahren mit Horizontalsperre\" title=\"\">\r\n                                                                             <!-- The section tag ensures that percentage savings is displayed only if it is available -->\r\n                                            <span class=\"atkp-pc-percent-off\">\r\n                                              -21%\r\n                                            <\/span>\r\n                                                                                                            <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B09SXZJG5Z?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Beton-ABC 10 Injektionsbeh&auml;lter, leere Injektionsflaschen f&uuml;r Injektionsverfahren mit Horizontalsperre\">\r\n                                    Beton-ABC 10 Injektionsbeh&auml;lter, leere Injektionsflaschen f&uuml;r Injektionsverfahren mit Horizontalsperre*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 15.00<\/span>\r\n                                <\/div>\r\n                                                                                                                            <div class=\"atkp-pc-product-list-price\">\r\n                                        <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                        instead of: <span\r\n                                                class=\"atkp-pc-product-list-price-value\">&euro; 19.00<\/span>\r\n                                    <\/div>\r\n                                                            \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0C78HH2FJ?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"NOVUSAN Injektionsflasche Horizontalsperre Keller Mauerwerk 1m Wand\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41gd2DI0ArL._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41gd2DI0ArL._SL160_.jpg\" alt=\"NOVUSAN Injektionsflasche Horizontalsperre Keller Mauerwerk 1m Wand\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B0C78HH2FJ?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"NOVUSAN Injektionsflasche Horizontalsperre Keller Mauerwerk 1m Wand\">\r\n                                    NOVUSAN Injektionsflasche Horizontalsperre Keller Mauerwerk 1m Wand*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 99.99<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00PNUC9C4?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Gardena 18216-20 Schlauchverbinder, 19 mm, verpackt\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41TVqZ-5M+L._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/41TVqZ-5M+L._SL160_.jpg\" alt=\"Gardena 18216-20 Schlauchverbinder, 19 mm, verpackt\" title=\"\">\r\n                                                                             <!-- The section tag ensures that percentage savings is displayed only if it is available -->\r\n                                            <span class=\"atkp-pc-percent-off\">\r\n                                              -25%\r\n                                            <\/span>\r\n                                                                                                            <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B00PNUC9C4?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Gardena 18216-20 Schlauchverbinder, 19 mm, verpackt\">\r\n                                    Gardena 18216-20 Schlauchverbinder, 19 mm, verpackt*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 5.79<\/span>\r\n                                <\/div>\r\n                                                                                                                            <div class=\"atkp-pc-product-list-price\">\r\n                                        <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                        instead of: <span\r\n                                                class=\"atkp-pc-product-list-price-value\">&euro; 7.69<\/span>\r\n                                    <\/div>\r\n                                                            \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                                    <li class=\"atkp-pc-product atkp-pc-product-6abb4279700d5 \">\r\n                        <div class=\"atkp-pc-product-image\">\r\n                            <div class=\"atkp-pc-product-image-wrapper\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B096XW1GG6?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Hecht 30m premium Gartenschlauch Set 13mm (1\/2 Zoll) &ndash; formstabil, trittfest &amp; UV-Best&auml;ndig, Gartenschlauch\/Wasserschlauch aus hochwertigem Spiralgewebe, 30 bar Schlauch Berstdruck\"> <!--Individual attributes are provided as variable tags as . Check documentation for list of supported variable tags.-->\r\n                                    <img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/61fZ0oajKYS._SL75_.jpg\" srcset=\"https:\/\/m.media-amazon.com\/images\/I\/61fZ0oajKYS._SL160_.jpg\" alt=\"Hecht 30m premium Gartenschlauch Set 13mm (1\/2 Zoll) &ndash; formstabil, trittfest &amp; UV-Best&auml;ndig, Gartenschlauch\/Wasserschlauch aus hochwertigem Spiralgewebe, 30 bar Schlauch Berstdruck\" title=\"\">\r\n                                                                                                                                                <\/a>\r\n                            <\/div>\r\n                        <\/div>\r\n                        <div class=\"atkp-pc-product-details\">\r\n                            <div class=\"atkp-pc-product-title\">\r\n                                <a href=\"https:\/\/www.amazon.de\/dp\/B096XW1GG6?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (carousel, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (Keller Trockenlegen Pumpensumpf bauen)&#039;);\" title=\"Hecht 30m premium Gartenschlauch Set 13mm (1\/2 Zoll) &ndash; formstabil, trittfest &amp; UV-Best&auml;ndig, Gartenschlauch\/Wasserschlauch aus hochwertigem Spiralgewebe, 30 bar Schlauch Berstdruck\">\r\n                                    Hecht 30m premium Gartenschlauch Set 13mm (1\/2 Zoll) &ndash; formstabil, trittfest &amp; UV-Best&auml;ndig, Gartenschlauch\/Wasserschlauch aus hochwertigem Spiralgewebe, 30 bar Schlauch Berstdruck*\r\n                                <\/a>\r\n                            <\/div>\r\n                                                            <div class=\"atkp-pc-product-offer-price\">\r\n                                    <!-- The section tag for different marketplaces ensures localization of static text.  -->\r\n                                    Price: <span\r\n                                            class=\"atkp-pc-product-offer-price-value\">&euro; 39.99<\/span>\r\n                                <\/div>\r\n                                                                                                                    \r\n\r\n                                                    <\/div>\r\n                    <\/li>\r\n\r\n                            <\/ul>\r\n        <\/div>\r\n    <\/div>\r\n    <a href=\"javascript:void(0);\" class=\"atkp-pc-btn-prev atkp-pc-btn-prev-6abb4279700d5\">\u2039<\/a>\r\n    <a href=\"javascript:void(0);\" class=\"atkp-pc-btn-next atkp-pc-btn-next-6abb4279700d5\">\u203a<\/a>\r\n<\/div>\r\n    <span class=\"atkp-disclaimer atkp-carousel-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 01:20 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\r\n\r\n\r\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"The_pump_sucks_in_stones\"><\/span>The pump sucks in stones<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Although I had placed the pump in the shaft on a brick to achieve a certain height above the ground, it still sucked in small stones that I had used as drainage and filter material.<\/p>\n<p>These stones got caught in the pump and caused considerable damage.<\/p>\n<p>The water was sucked in by the pump from below via an opening with a rather coarse sieve, which offered no real protection against the ingress of foreign bodies.<\/p>\n<p>The small stones collected under the impeller and on the side walls of the pump, damaging the impeller and breaking off some of the corners.<\/p>\n<p>The resulting pressure inside the housing was so great that parts of the plastic casing broke off. This was of course very annoying and showed that I had considerably underestimated the suction capacity of the pump.<\/p>\n<p>Despite the elevation of 10 cm above the ground, the suction was strong enough to suck in the small stones.<\/p>\n<p>For anyone planning a similar project, I strongly recommend placing a filter between the pump and the floor or placing the pump even higher, i.e. more than 10 cm above the floor.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31yQ+KuTlBL._SL160_.jpg\" alt=\"KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B07T6HV9SR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">KG Steigrohr Schachtrohr DN315 DN400 L&auml;nge - 1m Kanalschacht Kanalrohr Abwasser (DN 315)*<\/a>\n                    <div class=\"atkp-author\">by 315-SN2, 400-SN2<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>1m KG Steigrohr DN315 oder DN400<\/li>\n<li>VARIANTE 1 - DN315 Nennweite: DN315 L\u00e4nge: 100 cm Material: PVC (Polyvinylchlorid)<\/li>\n<li>VARIANTE 2 - DN400 Nennweite: DN400 L\u00e4nge: 100 cm Material: PVC (Polyvinylchlorid)<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 38.00\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B07T6HV9SR?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 00:48 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<h2><span class=\"ez-toc-section\" id=\"Repairing_the_submersible_pump_with_tape_and_sealant\"><\/span>Repairing the submersible pump with tape and sealant<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I have tried to repair my pump. To do this, I first fixed the broken parts with adhesive tape.<\/p>\n<p>Behind the adhesive tape I filled in a special adhesive that hardens completely and is waterproof. I sealed the hole in the sheathing in the same way.<\/p>\n<p>Although the repaired areas were not visually appealing, my design proved to be fit for purpose and worked perfectly.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<div id='gallery-2' class='gallery galleryid-21242 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_2-scaled.jpg\"><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_2-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A red Einhell pump power tool lies on a black mat next to a dismantled black plastic housing and several small screws against a brick wall background. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_2-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_2-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_2-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_4-scaled.jpg\"><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_4-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"On a dark mat lies a red power tool with the black plastic housing removed, surrounded by several small screws and with visible internal components. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_4-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_4-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_4-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_7-scaled.jpg\"><img decoding=\"async\" width=\"253\" height=\"253\" src=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_7-scaled-253x253.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"A red pump, an orange bucket, two white bottles and a green hose stand against a rough, unfinished stone wall with several plastic hoses embedded in it. www.commaik.de\" srcset=\"https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_7-scaled-253x253.jpg 253w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_7-scaled-300x300.jpg 300w, https:\/\/commaik.de\/upload\/2021\/01\/Keller_trocken_legen_pumpensumpf_pumpe_defekt_Rueckschlagventil_einbauen_7-scaled-75x75.jpg 75w\" sizes=\"(max-width: 253px) 100vw, 253px\" title=\"\"><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<hr \/>\n<h4><\/h4>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/31G3WO-vxnL._SL160_.jpg\" alt=\"Unterwasserkleber f&uuml;r Pool, Aquarium und Teich | Wagner Green MS Polymerkleber schwarz 310ml in DIN Kartusche | Spezial Reparatur Dichtmasse | Kleber f&uuml;r Teichfolie | abdichten von PVC- EPDM Folien&hellip;\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B07NVT9JC8?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">Unterwasserkleber f&uuml;r Pool, Aquarium und Teich | Wagner Green MS Polymerkleber schwarz 310ml in DIN Kartusche | Spezial Reparatur Dichtmasse | Kleber f&uuml;r Teichfolie | abdichten von PVC- EPDM Folien&hellip;*<\/a>\n                    <div class=\"atkp-author\">by Wagner Vertriebs GmbH<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Wagner GREEN MS-Polymerkleber ist ein einkomponentiger Unterwasserkleber f\u00fcr die Anwendung im Pool\u00b9, Schwimmbad, Gartenteich, Aquarien. Unterwasser Verklebung, Reparaturen und Abdichtung auf fast allen Untergr\u00fcnden. Kann direkt mit Wasser in Kontakt kommen, bzw. unter Wasser verarbeitet werden<\/li>\n<li>Reparatur Dichtmasse der neuesten Generation auf Polymer-Basis, klebt auf nassen Untergr\u00fcnden\u00b3, sehr hohe Klebekraft, gr\u00f6\u00dfe Dehnf\u00e4higkeitm gleichbleibend elastisch, gute UV- und Witterungsbest\u00e4ndigkeit, \u00dcberstreichbar, L\u00f6semittel- & isocyanatfrei, sofort schlagregenfest<\/li>\n<li>Reparatur Kleber f\u00fcr Notreparaturen: L\u00f6cher abdichten im Schwimmbad\u00b9, Schwimm- und Koi Teichen. Undichte Stellen an Dachrinnen, Winterg\u00e4rten und Aussenanlagen sofort abdichten. Klebt und dichtet Aquarien, Terrarien und Teichfolien<\/li>\n<li>Spezial Kleber zur Verklebung und Abdichtung von: Glas, Naturstein, Holz, Stahl, Kupfer, Aluminium, Kunststoffe (nicht r\u00fcckfettende), PVC, EPDM und Kautschukfolien, Teichfolien, GFK uvm. - Erstellung von Klebedichtungen unterschiedlichster Materialien, mit einander und untereinander<\/li>\n<li>Erneuern von Fliesen und Fugen auch unter Wasser\u00b9 - Abdichten im Feuchtraum- und Sanit\u00e4r-bereich\u00b2 - Ausbessern von Undichtigkeiten im Dachbereich\u00b3<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 19.79\n                                                            <span class=\"atkp_price atkp-baseprice\">(&euro; 63.84 \/ l)<\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B07NVT9JC8?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 01:02 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"The_water_runs_back\"><\/span>The water runs back<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Before I put the pump back in the shaft, I solved another problem that I had become aware of as a result of this incident.<\/p>\n<p>I originally opted for this pump model because it can easily pump the water up the 5 to 6 meters.<\/p>\n<p>However, the pump lacked a non-return valve, which meant that as soon as the pump switched off, the water flowed out of the hose and back into the sump.<\/p>\n<p>I had originally assumed that only the water from the riser would flow back and the rest would drain to the outside. However, this turned out to be a misjudgment.<\/p>\n<p>As the pump is well below the surface, when the pressure dropped, all the water ran out of the hose back into the sump due to the resulting negative pressure. This meant that the water flowed back 25 meters instead of the calculated 5 meters.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41pKko0BoNL._SL160_.jpg\" alt=\"VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B00SYJB7Y2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">VARIOSAN R&uuml;ckschlagventil 10704, 3\/4&quot;, Messing, PN 25, IG*<\/a>\n                    <div class=\"atkp-author\">by VARIOSAN<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Massives und langlebiges R\u00fcckschlagventil aus Messing geeignet f\u00fcr Wasserversorgungs-, Heizungs-, Klima- und Druckluftanlagen<\/li>\n<li>Gewinde: 3\/4\" (24,12 mm \/ DN 20) Innengewinde<\/li>\n<li>Material: K\u00f6rper aus Messing, Teller und Feder aus Edelstahl, Dichtung aus NBR<\/li>\n<li>Montage: in der senkrechten, waagerechten und schr\u00e4gen Lage montierbar<\/li>\n<li>Betriebstemperatur: -20\u00b0C bis 100\u00b0C \/ Gewindeanschl\u00fcsse: ISO228 \/ Nenndruck: 25 bar (PN 25)<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 12.90\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B00SYJB7Y2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 00:51 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<h2><span class=\"ez-toc-section\" id=\"Retrofit_check_valve_for_the_pump\"><\/span>Retrofit check valve for the pump<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I decided on a small non-return valve, which has \u00be inch internal threads on both sides and is made of brass. Inside, the valve has a stainless steel plate and spring.<\/p>\n<p>The seal is made of NBR, a synthetic rubber that is characterized by its chemical resistance and high abrasion resistance. This promised a long service life for the valve.<\/p>\n<p>To screw on the adapter for the garden hose, I also needed a double nipple with a \u00be inch external thread on both sides.<\/p>\n<p>&nbsp;<\/p>\n<p>A non-return valve is an important component in pump systems as it prevents the backflow of water. It ensures that the pumped-out water does not flow back into the pump sump when the pump switches off.<\/p>\n<p>The valve opens when water flows in the desired direction and closes automatically as soon as the flow stops or reverses. This effectively keeps the pump sump dry and reduces the load on the pump.<\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Risks_when_installing_the_non-return_valve\"><\/span>Risks when installing the non-return valve<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>However, there are a few risks to consider when installing a non-return valve.<\/p>\n<p>A key point is the position of the hose that drains the water. If this hose is located in an area that is not frost-proof, there is a risk that it will freeze in winter.<\/p>\n<p>A frozen hose can block the water and cause a backflow, which increases the pressure on the pump and can ultimately lead to damage.<\/p>\n<p>&nbsp;<\/p>\n<p>In addition, a non-return valve can become blocked by deposits and dirt over time. This requires regular maintenance and cleaning to ensure proper functioning.<\/p>\n<p>Another risk is the incorrect installation of the valve. If it is not installed correctly, it can lead to leaks or reduced efficiency of the pump system.<\/p>\n<p>It is therefore crucial to check the non-return valve regularly and ensure that the drain hose is frost-proof to ensure proper operation of the system.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41PVzEW44CL._SL160_.jpg\" alt=\"K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B0BXY99NHS?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">K&auml;rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor*<\/a>\n                    <div class=\"atkp-author\">by K&auml;rcher<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Starke Performance: Die K\u00e4rcher Schmutzwasser-Tauchpumpe SP 22.000 Dirt Level Sensor schafft bis zu 22.000 Liter Wasser pro Stunde \u2013 auch Schmutzwasser mit Schmutzpartikeln von bis zu 30 mm Korngr\u00f6\u00dfe<\/li>\n<li>F\u00fcr anspruchsvolle Situationen: Die Tauchpumpe ist f\u00fcr das Abpumpen gro\u00dfer Teiche, Baugruben oder bei \u00dcberschwemmungen geeignet. Der integrierte Vorfilter macht sie besonders robust<\/li>\n<li>Unmittelbares An- und Ausschalten: Der verstellbare Level Sensor schaltet das Ger\u00e4t immer dann an und aus, wenn ein bestimmter Wasserstand erreicht ist \u2013 in Sekundenschnelle<\/li>\n<li>Automatik-Manuell-Schalter: Die Tauchpumpe l\u00e4sst sich bequem auf Dauerbetrieb umstellen und pumpt dann bis zu einer Restwasserh\u00f6he von 35 mm ab<\/li>\n<li>Lieferumfang: Zum Lieferumfang geh\u00f6rt die K\u00e4rcher SP 22.000 Dirt Level Sensor Schmutzwasser-Tauchpumpe mit integriertem Vorfilter, Quick Connect-Schlauchanschluss und G 1 1\/2-Anschlussgewinde<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\">List Price: &euro; 184.99<\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\">You Save: &euro; 90.30 (-49%)<\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 94.69\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY99NHS?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 19:00 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<h2><span class=\"ez-toc-section\" id=\"Optimize_pump_protection_in_the_soakaway\"><\/span>Optimize pump protection in the soakaway<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The old pump worked without any problems for the following week after my adjustments. I placed an additional brick under the pump and also placed it in a wastepaper basket with a fine grid structure.<\/p>\n<p>These modifications prevented stones from being sucked in, but the residual water level remained somewhat higher.<\/p>\n<h3><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"Alternatives_for_avoiding_particles_in_the_pump\"><\/span>Alternatives for avoiding particles in the pump<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To prevent coarse particles and small stones from being sucked into the pump, there were various approaches that I considered.<\/p>\n<p>In addition to using the metal mesh wastepaper basket, I thought about other ideas to extend the life of the pump and increase its efficiency, researching other options and talking to other homeowners.<\/p>\n<p>The recommendations for protecting the pump from stones and coarse dirt were ultimately always the same:<\/p>\n<p>&nbsp;<\/p>\n<ol>\n<li><strong>Install pre-filter:<\/strong> An additional pre-filter could have been installed upstream of the pump to trap larger particles. These filters were specially developed for pump systems and could be easily cleaned or replaced.<\/li>\n<li><strong>Fine-mesh protective baskets:<\/strong> In addition to the waste paper basket, a fine-mesh protective basket could have been placed directly over the inlet of the pump. These baskets were often made of stainless steel and offered an additional protective layer against particles.<\/li>\n<li><strong>Regular cleaning of the pump s<\/strong> ump: Regular cleaning of the pump sump could have removed deposits and dirt before they entered the pump. This would have reduced the risk of clogging and extended the service life of the pump.<\/li>\n<li><strong>HEPA filters:<\/strong> HEPA filters, which float in the water and catch particles before they reach the pump shaft, could also have been a useful addition.<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p>However, all four options for protecting my pump proved to be useless for me as the pump sucked in the water over the entire floor area and regular cleaning of the pump sump would blow up my schedule.<\/p>\n<p>Another idea was to place the pump in a pre-filter bag. These pre-filters are normally used in industrial vacuum cleaners to reduce the load on the actual filter.<\/p>\n<p>Unfortunately, I couldn&#8217;t find a model in the right size and was also worried that the fabric would clog up too quickly with the suspended particles in the water.<\/p>\n<p>&nbsp;<\/p>\n<p>The idea of placing the pump in a metal mesh wastepaper basket, on the other hand, proved to be quite effective. The fine mesh prevented larger particles from entering the pump, while the water continued to flow out without any problems.<\/p>\n<p>However, this slightly increased the residual water level in the pump sump, which could be undesirable in some cases. Nevertheless, this method offered good protection and was relatively easy to implement.<\/p>\n<p>&nbsp;<\/p>\n<p>I look forward to receiving further tips and suggestions to optimize the system even further. Your comments and experiences are very welcome!<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/51QvfT8axEL._SL160_.jpg\" alt=\"Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B079N8KRC2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">Relaxdays Papierkorb Metall, gro&szlig;er Papiereimer f&uuml;rs B&uuml;ro, schwarz*<\/a>\n                    <div class=\"atkp-author\">by Relaxdays GmbH<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Dekorativ: Der runde Papierkorb f\u00fcgt sich mit seiner sch\u00f6nen und zugleich unaufdringlichen Optik bestens in Ihre Einrichtung ein - Dekoartikel in schicker Mesh-Optik - Schwarze Variante<\/li>\n<li>Vielf\u00e4ltige Nutzung: Praktisch f\u00fcr die M\u00fclltrennung in der K\u00fcche - Zusammengekn\u00fcllte Bl\u00e4tter und Werbeprospekte im Wohn- oder Arbeitszimmer schnell entsorgen - Drahtkorb als Begleiter im B\u00fcro<\/li>\n<li>Schneller \u00dcberblick: Der Abfallkorb besteht aus einem Drahtgeflecht - Der Papiereimer ist offen - Aufgrund der Gitter-Struktur sehen Sie sofort, wie voll oder leer der Papiersammler ist<\/li>\n<li>Starke Details: Dank der abgerundeten Kanten ist der Papiersammler auch f\u00fcrs Kinderzimmer geeignet - 3 dezente Noppen sorgen f\u00fcr festen Stand und schonen Fliesen sowie Bodenbel\u00e4ge<\/li>\n<li>Basics des runden M\u00fclleimers: Der Abfalleimer fasst ca. 19 Liter - Der obere Durchmesser des Abfallkorbes betr\u00e4gt ca. 30, der untere ca. 24 cm - Der leichte Drahteimer wiegt nur ca. 600 g<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 15.99\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B079N8KRC2?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 00:51 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h2><\/h2>\n<h2><span class=\"ez-toc-section\" id=\"New_INOX_pump_for_the_soakaway\"><\/span>New INOX pump for the soakaway<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In the meantime, I replaced the old pump with an INOX drainage pump from K\u00e4rcher. This had already proved to be powerful and reliable during my work on the pool. This new pump now performs its work safely and effectively in the pump shaft.<\/p>\n<p>The K\u00e4rcher dewatering pump SP 6 Flat Inox is a high-performance device that has been specially developed for demanding dewatering tasks.<\/p>\n<p>This pump is characterized by a maximum flow rate of up to 14,000 liters per hour and can pump water down to a minimum residual water height of just 1 mm, making it particularly effective in flooded areas.<\/p>\n<p>The maximum immersion depth is 7 meters and the maximum delivery head is 9 meters, which underlines its versatility.<\/p>\n<p>Thanks to its robust stainless steel housing and ceramic mechanical seal, the SP 6 Flat Inox offers increased durability and reliability.<\/p>\n<p>The pump also has an automatic float switch, which enables safe and energy-saving operation by automatically switching the pump on and off depending on the water level.<\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Karcher_INOX_pump\"><\/span>K\u00e4rcher INOX pump<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The technical specifications of the new pump are impressive:<\/p>\n<ul>\n<li><strong>Delivery rate:<\/strong> up to 14,000 liters per hour<\/li>\n<li><strong>Minimum residual water level:<\/strong> 1 mm<\/li>\n<li><strong>Maximum immersion depth:<\/strong> 7 meters<\/li>\n<li><strong>Maximum delivery head:<\/strong> 9 meters<\/li>\n<li><strong>Housing material:<\/strong> Stainless steel<\/li>\n<li><strong>Seal:<\/strong> Ceramic mechanical seal<\/li>\n<li><strong>Float switch:<\/strong> Automatic<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>K\u00e4rcher, founded in 1935, has made a name for itself worldwide as a leading supplier of efficient, resource-saving cleaning systems.<\/p>\n<p>K\u00e4rcher offers a wide range of products, from high-pressure cleaners and vacuum cleaners to various pump solutions that are suitable for both private and professional use.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41z2ppS7esL._SL160_.jpg\" alt=\"K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe*<\/a>\n                    <div class=\"atkp-author\">by K&auml;rcher<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Leistungsstarke Pumpe: Die flachsaugende Tauchpumpe SP 17.000 Flat Level Sensor bew\u00e4ltigt bis zu 17.000 Liter Wasser pro Stunde und ist ideal f\u00fcr gr\u00f6\u00dfere Wassermengen wie Pools oder \u00dcberschwemmungen<\/li>\n<li>Wischtrockenes Ergebnis: Die Pumpe kommt dank der einklappbaren Standf\u00fc\u00dfe auf eine Restwasserh\u00f6he von 1 mm \u2013 egal, ob sie im Automatik- oder im Dauerbetrieb arbeitet<\/li>\n<li>Stufenlos verstellbarer Level Sensor: Die Tauchpumpe startet sofort bei Wasserkontakt und stoppt nach 15-sek\u00fcndiger Nachlaufzeit, wenn der gew\u00fcnschte Wasserstand erreicht ist<\/li>\n<li>Einfache Umstellung: An der Oberseite des Edelstahlgeh\u00e4uses befindet sich ein Schalter, mit dem ganz leicht zwischen Dauer- und Automatikbetrieb gewechselt werden kann<\/li>\n<li>Lieferumfang: Zum Set geh\u00f6ren die K\u00e4rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe, ein abnehmbarer Edelstahl-Vorfilter und ein Quick Connect-Schlauchanschluss mit R\u00fcckschlagventil<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 122.60\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 01:20 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<h4><\/h4>\n<h2><span class=\"ez-toc-section\" id=\"Summary_and_conclusion\"><\/span>Summary and conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Two months ago, I built a soakaway with a pump sump in my basement to collect any water seeping in and keep the basement dry. A submersible pump with a float switch was supposed to pump the water outside, but after a few weeks the pump was defective.<\/p>\n<p>Routine checks showed high power consumption and noise, which indicated a malfunction.<\/p>\n<p>The cellar is located in a house built in 1900 and remains damp despite the exterior walls having been drained. Heavy rainfall led to renewed water problems. I placed the pump in a metal mesh basket to prevent stones from being sucked in, but this increased the residual water level slightly.<\/p>\n<p>In the meantime, I replaced the old pump with a K\u00e4rcher SP 6 Flat Inox. This pump is powerful, has a flow rate of up to 14,000 liters per hour and pumps water down to a minimum residual water height of 1 mm.<\/p>\n<p>It is made of robust stainless steel, has a ceramic mechanical seal and an automatic float switch.<\/p>\n<p>To keep particles and stones out, I considered various approaches such as pre-filters, fine-mesh protective baskets, regular cleaning and HEPA filters. The metal mesh basket proved to be effective and easy to implement.<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ_about_the_pump_sump_and_submersible_pump\"><\/span>FAQ about the pump sump and submersible pump<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>1. what is a sump pump and why is it needed in the cellar?<\/strong><br \/>\nA sump is a shaft in the ground that is used to collect and drain water that enters the cellar. In the event of moisture or flooding, a submersible pump in the sump pump ensures that the water is automatically pumped out and the cellar remains dry.<\/p>\n<p><strong>2 Why did the submersible pump break down in the pump sump?<\/strong><br \/>\nThe submersible pump was damaged by small stones and dirt that were sucked in through the pump inlet. These foreign objects damaged the impeller and caused cracks in the pump casing.<\/p>\n<p><strong>3. how can you prevent stones and dirt from getting into the submersible pump?<\/strong><br \/>\nThere are various approaches to protect the pump from dirt, e.g. using a metal mesh basket around the pump to act as a filter or installing a pre-filter directly at the pump inlet. Regular cleaning of the pump sump also helps to reduce the risk.<\/p>\n<p><strong>4 Why is a non-return valve important?<\/strong><br \/>\nA non-return valve prevents the pumped-out water from flowing back into the sump after the pump is switched off. Without this valve, the water can run back through the vacuum, which puts unnecessary strain on the pump.<\/p>\n<p><strong>5 What are the risks of installing a non-return valve?<\/strong><br \/>\nThe risks include incorrect installation, which can lead to leaks, as well as deposits and dirt that could block the valve. If the drain hose is not laid in a frost-proof manner, there is also a risk that it will freeze in winter.<\/p>\n<p><strong>6. what alternative is there to using a metal mesh basket around the pump?<\/strong><br \/>\nThe metal mesh basket prevents larger particles and stones from entering the pump, while the water can continue to flow out without any problems. However, this can slightly increase the residual water level in the pump sump.<\/p>\n<p><strong>7 Why was the old submersible pump replaced by a K\u00e4rcher SP 6 Flat Inox?<\/strong><br \/>\nThe K\u00e4rcher SP 6 Flat Inox was chosen because of its higher performance and durability. It can pump up to 14,000 liters per hour, has a minimum residual water height of 1 mm and is particularly resistant thanks to its robust design and ceramic mechanical seal.<\/p>\n<p><strong>8 What are the advantages of a submersible pump with float switch?<\/strong><br \/>\nA float switch controls the pump automatically and only activates it when the water level in the shaft rises. This saves energy and protects the pump from overloading, as it does not run unnecessarily long.<\/p>\n<p><strong>9. how can the pump sump be additionally protected?<\/strong><br \/>\nThe pump sump can be protected by regular cleaning, the use of pre-filters, HEPA filters or fine-mesh protective baskets to protect the pump from blockages and damage caused by dirt particles.<\/p>\n<p><strong>10 What are the technical features of the K\u00e4rcher SP 6 Flat Inox pump?<\/strong><br \/>\nThe pump has a maximum flow rate of 14,000 liters per hour, a maximum delivery head of 9 meters and a minimum residual water height of 1 mm. It is made of stainless steel and has a ceramic mechanical seal and an automatic float switch.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<div class=\"atkp-container atkp-productbox-box  atkp-template-productbox\">\n                        <div class=\"atkp-box atkp-clearfix \"\n                 style=\"\">\n                <div class=\"atkp-predicateheadline atkp-predicate-highlight\">\n                    <span><\/span><\/div>\n                <div class=\"atkp-thumb\">\n                                            <img decoding=\"async\" class=\"atkp-image\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41z2ppS7esL._SL160_.jpg\" alt=\"K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe\" title=\"\">\n                                                                                <\/div>\n                <div class=\"atkp-content\">\n                    <a class=\"atkp-title\" href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\">K&auml;rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe*<\/a>\n                    <div class=\"atkp-author\">by K&auml;rcher<\/div>\n\n                    \n                    <div class=\"atkp-description\"><ul>\n<li>Leistungsstarke Pumpe: Die flachsaugende Tauchpumpe SP 17.000 Flat Level Sensor bew\u00e4ltigt bis zu 17.000 Liter Wasser pro Stunde und ist ideal f\u00fcr gr\u00f6\u00dfere Wassermengen wie Pools oder \u00dcberschwemmungen<\/li>\n<li>Wischtrockenes Ergebnis: Die Pumpe kommt dank der einklappbaren Standf\u00fc\u00dfe auf eine Restwasserh\u00f6he von 1 mm \u2013 egal, ob sie im Automatik- oder im Dauerbetrieb arbeitet<\/li>\n<li>Stufenlos verstellbarer Level Sensor: Die Tauchpumpe startet sofort bei Wasserkontakt und stoppt nach 15-sek\u00fcndiger Nachlaufzeit, wenn der gew\u00fcnschte Wasserstand erreicht ist<\/li>\n<li>Einfache Umstellung: An der Oberseite des Edelstahlgeh\u00e4uses befindet sich ein Schalter, mit dem ganz leicht zwischen Dauer- und Automatikbetrieb gewechselt werden kann<\/li>\n<li>Lieferumfang: Zum Set geh\u00f6ren die K\u00e4rcher SP 17.000 Flat Level Sensor flachsaugende Tauchpumpe, ein abnehmbarer Edelstahl-Vorfilter und ein Quick Connect-Schlauchanschluss mit R\u00fcckschlagventil<\/li>\n<\/ul>\n<\/div>\n                <\/div>\n                <div class=\"atkp-bottom\">\n                                            <span class=\"atkp-price atkp-listprice\"><\/span>\n                                                                <span class=\"atkp-price atkp-savedamount\"><\/span>\n                                                                <span class=\"atkp-price atkp-saleprice\">\n                            &nbsp;Price: &euro; 122.60\n                                                            <span class=\"atkp_price atkp-baseprice\"><\/span>\n                                                    <\/span>\n                                        <a href=\"https:\/\/www.amazon.de\/dp\/B0BXY7PXSY?tag=wwwcommaikde-21&amp;linkCode=ogi&amp;th=1&amp;psc=1\" rel=\"sponsored nofollow noopener\" target=\"_blank\" onclick=\"ga(&#039;send&#039;, &#039;event&#039;, &#039;Link (productbox, Amazon commaik-21)&#039;, &#039;click&#039;, &#039; (New submersible pump defective &#8211; draining the cellar)&#039;);\" title=\"Jetzt kaufen bei Amazon\" class=\"atkp-button\">Jetzt auf Amazon kaufen*<\/a>\n                                        <div class=\"atkp-container\"><\/div>\n                                            <span class=\"atkp-priceinfo\">Preis inkl. MwSt., zzgl. Versandkosten<\/span>\n                                    <\/div>\n            <\/div>\n                            <span class=\"atkp-disclaimer\">Zuletzt aktualisiert am 28. September 2026 um 01:20 . Ich weise darauf hin, dass sich hier angezeigte Preise inzwischen ge\u00e4ndert haben k\u00f6nnen. Alle Angaben ohne Gew\u00e4hr. \r\n\r\n(*) Bei den verwendeten Produktlinks handelt es sich um Affiliate Links. Ich bin nicht der Verk\u00e4ufer des Produktes. Als Amazon-Partner verdiene ich an qualifizierten Verk\u00e4ufen. Dein Preis \u00e4ndert sich jedoch nicht. <\/span>\n            <\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<div id=\"comma-3268186355\" class=\"comma-nach-dem-inhalt comma-entity-placement\"><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3563316148321376\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-3563316148321376\" \ndata-ad-slot=\"6867259082\" \ndata-ad-format=\"auto\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Two months ago I built a sump pit with a sump pump in my cellar to collect the water seeping into it and further dry out my cellar. A submersible pump with an integrated float switch should then pump the water out via a hose. Unfortunately, things turned out quite differently. The new submersible pump in the pump sump was defective after just a few weeks. Read this article to find out why the pump was destroyed and how the draining process continued.<\/p>\n","protected":false},"author":2,"featured_media":22666,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[3533,3532,3531,3530],"tags":[3918,3544,3912,3916,3902,3905,3910,3541,3901,3535,3911,3907,3917,3908,3903,3909,3913,3904,3906,3914],"class_list":["post-21242","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-restoration-and-working-techniques","category-stories-from-the-construction","category-the-cellar-en","category-the-house","tag-basement-build","tag-basement-drainage-injection-method","tag-basement-waterproofing","tag-basement-waterproofing-from-the-inside","tag-basement-waterproofing-old-building","tag-build-pump-sump-yourself","tag-build-pump-well","tag-cellar-dry-out-inside","tag-cellar-dry-out-old-building","tag-commaik-en-2","tag-drainage-in-the-basement","tag-dry-cellar","tag-old-cellar-waterproofing","tag-pump-shaft","tag-pump-sump","tag-pump-well-cellar","tag-pump-well-drainage","tag-sump-cellar","tag-sump-pump","tag-sump-pump-connect-pump"],"acf":[],"_links":{"self":[{"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/posts\/21242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/comments?post=21242"}],"version-history":[{"count":0,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/posts\/21242\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/media\/22666"}],"wp:attachment":[{"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/media?parent=21242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/categories?post=21242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/commaik.de\/en\/wp-json\/wp\/v2\/tags?post=21242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}