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  • COMMAIK
    • Contact Form
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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
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    • Security & Smart Home
    • Tools & DIY
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  • Building a BPC and WPC terrace on a slope – My new pool terrace with recycled boards

    A backyard features a rectangular swimming pool surrounded by a wooden deck, a small covered terrace with a bar, a palm tree, garden beds, a lawn, a greenhouse, and a white house with stone siding. www.commaik.de

    BPC decking, slope, pool construction and substructure – in this post I show how I built my new pool deck with recycled BPC boards, solid larch beams and aluminum profiles. The pool is located on a slope, which places special demands on stability, gradient and load-bearing capacity. I share my experiences with BPC and WPC, explain the differences in installation and show what really matters when it comes to a durable, resilient decking construction. If you want to build a patio yourself, you’ll find lots of practical tips and insights here.

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    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 person holds a trencher, creating trenches in a grassy yard for irrigation. Several orange buckets filled with soil are placed around the dug areas, with a brick path on the right and a stone building in the background. www.commaik.de

    Installing a lawn sprinkler: Step-by-step instructions for watering your garden

    21. March 2025
    A robot mower glides across a well-manicured grassy lawn bordered by white gravel, with a patio area and outdoor chairs visible in the background. www.commaik.de

    Robot lawn mower without boundary wire in test: The best models in comparison

    26. February 2025
  • Pool heating with ribbed pipe systems – Build your own solar heating for the pool

    Black pipes on a rooftop pool heating system in the foreground, with a backyard swimming pool, lawn, stone wall, blue shed, and covered seating area in the background on a sunny day. www.commaik.de

    Pool heating, solar absorber, Ripp pipe system and the efficient use of solar energy – in this article I document the complete conversion of my old EPDM pool heating system into a modern Dolphi-Ripp solar heating system. After more than ten years of practical experience with EPDM mats, I will show you why the change was necessary, which system is convincing today and how the new solar-based pool heating is proving itself in everyday life. Step by step, I describe the planning, installation and initial results – including technical details, comparisons and practical tips for installing a solar absorber on the roof.

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    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
    A man with gray hair and a thoughtful expression stands in front of a textured beige wall with faded markings, while a large white arrow points to a spot where a horizontal barrier was installed for drying purposes. www.commaik.de

    Draining the basement with a new horizontal barrier – conclusion after 9 months

    8. November 2024
    A sprinkler sprays water over a dry, brown patch of lawn in a sunny backyard, illustrating the importance of garden irrigation. A blue shed and green trees provide a lush backdrop. www.commaik.de

    Planning automatic garden irrigation: step-by-step instructions for efficient lawn irrigation

    21. February 2025
  • 6 steps to perfect pool water after the winter break

    A clear outdoor swimming pool with sparkling pool water reflects sunlight, surrounded by palm trees and neatly trimmed bushes on a bright, sunny day. The wooden pool deck features a depth marker reading 1.0 M. www.commaik.de

    After the winter break, the pool water is often cloudy and contaminated with deposits and algae. A few important steps are required to ensure that the pool is clean and inviting again in time for the swimming season. From thorough cleaning and topping up the water to optimally adjusting the water values – only with the right care will the water remain crystal clear and hygienic. I have tested various methods and products to quickly restore the pool water to an ideal condition after the winter break. In this article, I will show you the best solutions for effective pool maintenance and present tried-and-tested products that can be used to…

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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
    Graphic featuring multiple Reolink security cameras and a video recorder on a gray background, with “Reolink Firmware Update?!” highlighted in bold text at the center. www.commaik.de

    Update Reolink firmware quickly and safely: Step-by-step guide for cameras and NVRs

    7. February 2025
    Partially built outdoor wall of white concrete blocks with exposed electrics, a level tool, and a hammer on top—ideal for a future garden kitchen. A canopy and stacked firewood appear in the background. www.commaik.de

    Build your own garden kitchen – plan and install the electrics

    19. March 2024
  • Laying pool edging stones and building your own pool terrace for the perfect pool surround

    A rectangular outdoor swimming pool with clear blue water is surrounded by gray tiled paving and pool edge stones. There is a small palm tree, green grass, and hedges in the background. Some tiling work appears unfinished on one side. www.commaik.de

    When building the pool, the correct laying of the pool edge stones and the construction of a beautiful and functional pool terrace played an important role. In this article, I describe how I selected the materials, prepared the substrate, cut and glued the stones. I also show how I laid the terrace loosely and built a platform as a transition to the garden terrace. Building a pool has been one of my biggest DIY projects. In this article, I would like to tell you about my experiences with laying pool edging stones and building the pool terrace.

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    A large empty pool under remodeling, featuring unfinished walls, a rolled-up white liner in the center, scattered debris on the floor, and a wooden ladder leaning against one side. www.commaik.de

    Converting a pool – dismantling an old steel wall pool

    8. March 2021
    3D floor plan of a rectangular room with grey walls, labeled dimensions, a curved front wall, built-in shelves on the left, and a person standing outside for scale. The approximately 6x4 meter room could easily fit a small indoor pool. www.commaik.de

    Plan your own pool and create a 3D floor plan

    25. May 2021
    Exposed wooden beams and metal pipes of a building under construction or renovation, with a partially demolished wall near the future terrace and scattered debris on the ground. Sunlight casts shadows across the scene. www.commaik.de

    Building a new pool – dismantling BPC decking and pool technology

    12. March 2021
  • Laying, gluing and welding pool liners correctly

    An empty, bright blue swimming pool with a smooth pool liner, gray steps in one corner, and a circular drain on the wall. The outdoor pool is surrounded by unfinished ground and scattered greenery. www.commaik.de

    In this article, I describe how the new pool liner was laid, glued and welded to the walls and floor of our new pool. The pool steps and the sunbathing area in the water were lined with a special pool liner that makes the surface non-slip. The new pool in the garden was built with concrete formwork blocks and replaces our old steel wall pool. Before I can lay the liner in the concrete pool, some preparations are necessary. In this article I will show you every step.

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    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
    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 patch of grass with a hole dug in the soil, exposing underground cables for a robot lawn mower. Nearby are an orange cable locator tool, wires, a white hose, and two blue wire connectors. www.commaik.de

    Robot lawn mower – Find and repair a broken control cable easily

    19. January 2024
  • Winterizing the pool – putting pool technology into operation and adjusting water values

    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 is at the top of my to-do list in spring. The winter safety devices must be dismantled and the pool technology must be installed. The water values are checked and readjusted. The filter systems are also reactivated. So nothing stands in the way of a great swimming season. In this article, you’ll find out which steps are important and how I prepared my pool optimally for sunny bathing days.

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    A person in dark clothing stands by a white counter, holding a metal tube and a small rectangular device. Behind the counter is a white and black parking heater machine labeled Motour with various attachments and a red button. www.commaik.de

    Heating optimization: How to make your diesel parking heater quieter – pump and silencer in the test

    20. December 2025
    A robot mower without boundary wire, with a grey and white casing, moves from a brick patio onto a green lawn bordered by stones and gravel. www.commaik.de

    ECOVACS GOAT A1600 RTK: The innovative robotic lawnmower without boundary wire in the test

    23. March 2025
    An empty, bright blue swimming pool with a smooth pool liner, gray steps in one corner, and a circular drain on the wall. The outdoor pool is surrounded by unfinished ground and scattered greenery. www.commaik.de

    Laying, gluing and welding pool liners correctly

    10. February 2024
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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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