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  • COMMAIK
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  • The Villa
    • The top floor
    • The upper floor
    • The first floor
    • The cellar
    • The garden
  • Stories from the construction
    • irrigation
    • Photovoltaics
    • Pool and terrace
    • SmartHome
    • The planning
    • The demolition
    • The installation
    • Machinery
    • Restoration and working techniques
    • This and that
  • Videos
    • Build & Renovate
    • Irrigation
    • Carport
    • Gabions
    • Garden
    • Garden kitchen
    • Pool
    • Smart Home
    • Drying
    • Tutorials
  • TESTED & RATED
    • Heating solutions & energy
    • Outdoor & Garten
    • Pool & garden kitchen
    • Security & Smart Home
    • Tools & DIY
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  • High Chlorine Consumption in the Pool: Why 20 Liters of Chlorine Disappeared in Two Weeks

    An almost empty swimming pool with some dirt on the bottom, a green hose, and a small pump. A staircase leads down to the pool, which is surrounded by light-colored tiles—factors that can affect chlorine usage when you’re preparing the pool for use. www.commaik.de

    Too much chlorine in the pool, a chlorine canister that’s constantly empty, or water parameters that don’t add up even though the water is clear: There are many possible causes for high chlorine consumption. In addition to sunlight, temperature, and swimming activity, the pH level, the chlorine products used, and cyanuric acid also play an important role. Even a good redox value does not automatically mean that the measured chlorine level in the pool is interpreted correctly. I noticed the problem after installing the BAYROL Automatic Cl-pH. In just under two weeks, the dosing system used about 20 liters of liquid chlorine—even though the water was clear and the system…

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    Two Anthbot robotic lawnmowers stand side by side on green grass, the sunlight illuminating their wheels and sensors in a backyard or garden. www.commaik.de

    Robot lawn mower without boundary wire in test: LiDAR vs RTK in comparison (ANTHBOT M5 vs M9)

    14. April 2026
    Partially completed garden kitchen with unfinished wooden cabinets, a dark worktop, an open window, and power tools on the counter. Trees and buildings can be seen outside. www.commaik.de

    Build your own garden kitchen – worktop and jamb for the outdoor kitchen

    20. May 2024
    Built-in outdoor kitchen featuring a black gas grill with a sizzling sizzle zone in the center, a side burner on the left, and sleek metal drawers and cabinets below—all set in a stylish wooden and concrete counter. www.commaik.de

    Permanently installing the sizzle zone of the Napoleon gas barbecue in the outdoor garden kitchen

    30. April 2025
  • TerraMow V1000, V600, and Mini 500 Review: Robotic Lawn Mowers Without RTK and Lidar?

    Two robotic mowers, the TerraMow V600 and the V500, are sitting on the lawn; cameras are mounted on their sleek gray bodies and wheels. The word “TERRAMOW” is clearly visible on both of them. In the background, you can see a hedge and a building—the perfect setting for an outdoor test. www.commaik.de

    A robotic lawn mower without RTK, LiDAR, or a boundary wire is supposed to map the yard on its own and still navigate reliably. This is exactly where the TerraMow Mini 500, TerraMow V600, and TerraMow V1000 come in, with their camera-based TerraVision 2.0 technology. I’ve tested the Mini 500 and V600 extensively and am comparing them to the larger V1000. This article highlights the differences in navigation, obstacle detection, the app, coverage area, and edge cutting—and explains which model is the best choice for which type of garden.

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    An almost empty swimming pool with some dirt on the bottom, a green hose, and a small pump. A staircase leads down to the pool, which is surrounded by light-colored tiles—factors that can affect chlorine usage when you’re preparing the pool for use. www.commaik.de

    High Chlorine Consumption in the Pool: Why 20 Liters of Chlorine Disappeared in Two Weeks

    31. August 2026
    Two Anthbot robotic lawnmowers stand side by side on green grass, the sunlight illuminating their wheels and sensors in a backyard or garden. www.commaik.de

    Robot lawn mower without boundary wire in test: LiDAR vs RTK in comparison (ANTHBOT M5 vs M9)

    14. April 2026
    A portable hcalory diesel heating unit sits inside a metal box with an open lid, next to a light gray wooden wall. Various hoses and a fuel tank are visible, along with ventilation pipes extending from the box. www.commaik.de

    Hcalory TB MAX 8 kW diesel heater in a practical test – compact all-in-one heater for camping, workshops and motorhomes

    9. November 2025
  • ECOVACS GOAT O1200 LiDAR PRO Review: Perfect Edge Mowing Without Any Touch-Ups?

    An Ecovacs Goat robotic lawn mower with a black-and-white body stands in the sunlight on a green lawn; it has a red button and a front brush. www.commaik.de

    Lawn edges are among the biggest weak spots for many robotic mowers. The open lawn area is mowed neatly, but a narrow strip often remains unmowed along walls, hedges, or barriers that the mower cannot cross. That’s exactly where the ECOVACS GOAT O1200 LiDAR PRO comes in, with its side-extending TruEdge Trimmer. I tested the robotic lawn mower on three separate lawns, evaluating features such as automatic mapping, navigation, app control, the mowing pattern, and edge cutting. I was particularly interested in whether the built-in trimmer could actually reduce the need for regular touch-ups with a handheld trimmer. The first impression in the ECOVACS GOAT O1200 LiDAR PRO review was…

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    Close-up of a partially constructed wooden deck, ideal for a garden terrace renovation, with a drill, screws, hammer, and metal brackets on top of the decking boards; metal framing and groundwork visible underneath. www.commaik.de

    Renovating the garden terrace: switching from wood to WPC and aluminum profiles

    17. March 2024
    A man stands next to a mounted parking heater system with large pipes, wires, and controls—perfect for any workshop. Large text above reads, Diesel Heizung für die Werkstatt (Diesel heater for the workshop). www.commaik.de

    Install 8kW diesel parking heater safely in the workshop & garage

    9. May 2025
    Close-up of two wire connectors and a cut green boundary wire on grass, with wire cutters and a plier nearby; white stones are visible in the background. www.commaik.de

    Repairing broken wires: Finding and repairing the boundary wire for robotic lawnmowers

    23. November 2024
  • Robot lawn mower without boundary wire in test: LiDAR vs RTK in comparison (ANTHBOT M5 vs M9)

    Two Anthbot robotic lawnmowers stand side by side on green grass, the sunlight illuminating their wheels and sensors in a backyard or garden. www.commaik.de

    Robot mowers without boundary wires are currently one of the most exciting developments in the gardening sector. In my test, I directly compared two different concepts: the ANTHBOT M5 as a LiDAR robotic lawnmower and the ANTHBOT M9 as an RTK robotic lawnmower with GPS navigation. Both models manage completely without a perimeter wire and show in the practical test how well cordless robotic lawn mowers really work today. In this comparison, I share my experiences from my own garden, discuss navigation, obstacle detection, edge cutting and set-up and clarify which robotic lawnmower without a wire is the best choice for which area of application.

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    Partially constructed garden kitchen with unfinished concrete block walls, a wooden roof, and a grill inside. The structure sits in a backyard, surrounded by trees visible in the background. www.commaik.de

    Build your own garden kitchen – solid half-timbered roof with OSB and welded sheeting for the outdoor kitchen

    22. March 2024
    An outdoor Rain Bird irrigation control box with wiring is surrounded by gravel, drip tube, and plants, indicating the installation or maintenance of a garden watering system. www.commaik.de

    DIY ornamental bed with automatic Rain Bird drip tube irrigation

    2. February 2024
    A man thoughtfully poses in front of images of the Argus Eco Ultra cameras, a solar panel, and a backyard pool. The Reolink logo is at the top right, with "Argus Eco Ultra" displayed prominently in bold text. www.commaik.de

    Reolink Argus Eco Ultra review: 4K rechargeable surveillance camera without subscription

    17. February 2025
  • Lymow One Plus in test: RTK robot mower for large areas & difficult terrain

    A Lymow One Plus robotic lawnmower with tank-like tracks sits on green grass, slightly dirty from use, in an outdoor area. www.commaik.de

    In the Lymow One Plus test, I show how this robotic lawnmower performs in practice without a boundary wire on a large and demanding area. With RTK navigation, chain drive, 45° incline and a cutting width of 40 cm, the Lymow takes a significantly different approach to classic robotic mowers. I tested the new Lymow One Plus extensively and compared it directly with the Lymow One. The focus is on performance, navigation, off-road capability and the question of whether this system is really worthwhile for large plots of land. The article provides a detailed insight into the technology, set-up, practical test and my experiences – including strengths, weaknesses and a…

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    Two cats stand near a MOVA Z60 Ultra roller robot vacuum, its charging station, and the MOVA Z60 product box, all placed on a wooden floor. www.commaik.de

    MOVA Z60 Ultra Roller Complete test: Fully automatic cleaning with AI and hot water

    15. October 2025
    A small backyard swimming pool with clear blue water is surrounded by patio stones. The covered outdoor seating area, topped with solar panels, offers a perfect spot for winterizing the pool. A palm plant sits in the foreground. www.commaik.de

    Winterizing the pool – putting pool technology into operation and adjusting water values

    29. January 2024
    A metal heating box with hoses attached sits open next to a building, revealing machinery and a plastic container inside; the box appears to be an outdoor equipment unit or possibly a parking heater. www.commaik.de

    Installing a mobile diesel parking heater in the garden shed

    15. January 2025
  • The best Reolink 4k PTZ surveillance cameras in comparison: 823S2 vs 823S1 vs TrackMix vs TrackFlex in test

    A 4K PTZ Reolink security camera monitors a man walking towards a large house at dusk. A digital overlay highlights the camera's facial recognition and zooms in on the man's face with a blue square frame. www.commaik.de

    For me, Reolink is one of the most exciting manufacturers of modern 4K PTZ surveillance cameras for indoor and outdoor use. In this Reolink surveillance camera comparison, I analyze several high-performance models – from classic PTZ cameras with optical zoom to dual-lens and floodlight variants for outdoor use. The focus is on image quality, motion detection, night vision, PoE vs. WLAN, local storage without a subscription and the question of which camera is really suitable for large properties, driveways or security-relevant areas. I will show you my practical experience with the RLC-823S2, RLC-823S1, TrackMix and TrackFlex and categorize the models technically and strategically. The aim of this article is to…

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    A smart irrigation controller displaying “Hydrawise” is shown with an arrow pointing to a sprinkler watering a lush green lawn in the backyard. www.commaik.de

    Installing and programming the Hunter Hydrawise irrigation computer – step by step

    24. August 2025
    A man points to security camera equipment, featuring a Reolink Altas PT Ultra camera, solar panel, and hub, with a backyard pool and patio area in the background. The Reolink logo is displayed on the left. www.commaik.de

    Reolink Altas PT Ultra: The powerful 4K battery-powered surveillance camera in a test

    13. October 2024
    A man in a black jacket points to the inside of a black, box-shaped electronic device with wires, next to a similar device with the inscription "KROAK TB2" on a gray background. www.commaik.de

    Kroak TB2 diesel parking heater 8kW: Unboxing, test & possible applications

    22. January 2025
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Autor & Blogger

In this construction diary, we share our experience in the renovation and modernization of our Art Nouveau villa and hope to give a few suggestions and tips to some of you.

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