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  • COMMAIK
    • Contact Form
    • Imprint
    • Privacy Policy
  • 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
  • Commaik Music
  • Privacy Policy
  • Imprint
  • Contact Form
  • 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 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

    6 steps to perfect pool water after the winter break

    14. February 2025
    A worn, empty concrete pit with rusty beams, exposed pipes, and draining buckets—one orange and one green—sits against stained, aged walls in a dimly lit basement-like area. www.commaik.de

    Draining and waterproofing basements: Effective measures against moisture and flooding

    24. November 2024
    A black Reolink NVR device is shown against a gray background. A large text in German reads "Hard disk retrofitting". The Reolink logo appears in the bottom left corner. www.commaik.de

    Expand Reolink NVR storage space – Installing and configuring hard disks correctly

    26. February 2026
  • Hardy palms for the garden – these 5 species can withstand frost down to -15 °C

    A hardy palm tree planted in a gravel bed stands in the foreground of a backyard with a blue swimming pool, blue shed, patio cover, and outdoor furniture in the background. www.commaik.de

    Hardy palm trees for the garden in Germany? I have tried it – with success. In this article, I show you my best frost-resistant palm species for German gardens that can be planted out permanently or kept in containers. I present five tried-and-tested palm species, hardy down to -15 degrees, and explain what is important when planting, caring for and overwintering them. Anyone looking for exotic hardy palms for Central Europe will find practical tips, specific product recommendations and personal experiences from my garden here.

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    A worn, empty concrete pit with rusty beams, exposed pipes, and draining buckets—one orange and one green—sits against stained, aged walls in a dimly lit basement-like area. www.commaik.de

    Draining and waterproofing basements: Effective measures against moisture and flooding

    24. November 2024
    Two surveillance cameras are shown on the left and a network diagram for installing an IP camera is shown on the right. Below is written: Install Reolink surveillance cameras yourself. www.commaik.de

    Install surveillance cameras yourself – IP camera network explained simply

    16. January 2026
    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
  • ECOVACS GOAT A1600 RTK: The innovative robotic lawnmower without boundary wire in the test

    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

    A robotic lawnmower without boundary wires can revolutionize lawn care – no more laying and repairing wires, just precise navigation with RTK technology. The ECOVACS GOAT A1600 RTK promises exactly that. After more than 10 years with the Gardena Sileno+, which was regularly slowed down by broken cables, we needed an alternative. In this test, I show how the GOAT A1600 RTK performs in practice: from installation and mapping to mowing quality and safety. Is the cordless robotic lawnmower really convincing? Here is the answer.

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    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

    Lymow One Plus in test: RTK robot mower for large areas & difficult terrain

    29. March 2026
    Various X-Sense smoke detector products, their packaging, mounting stickers, and a fire extinguisher are arranged on a wooden table with tools hanging on a pegboard in the background. www.commaik.de

    Network wireless smoke detectors across several floors: How X-Sense Link+ protects your whole house!

    21. July 2025
    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 with ribbed pipe systems – Build your own solar heating for the pool

    13. April 2025
  • Installing a lawn sprinkler: Step-by-step instructions for watering your garden

    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 lawn sprinklers and setting up efficient lawn irrigation – that’s exactly what this article is about. I show how I planned my garden irrigation system, laid the PE pipes and equipped the system with automatic irrigation. I explain step by step how to excavate the trenches, connect the sprinklers with Hunter Swing-Joints and test for leaks. In the end, the irrigation runs reliably and saves time when watering.

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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 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 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
  • Bypass and anvil in comparison – find the perfect secateurs for your plants

    A pair of secateurs lies on a wooden board and cuts a branch in the midst of green plants and flowers in a sunlit garden, with a bench and a house in the background. www.commaik.de

    High-quality secateurs are essential for the care of plants, shrubs and trees. But which secateurs are the best? In my large garden shears test, I tested various models and compared them with each other. I took a close look at both bypass pruning shears and anvil pruning shears to find out which are best suited to different applications. Whether you want to cut fine branches, thick twigs or dry wood – in this garden shears comparison you will find the best models for every requirement.

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    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

    Laying pool edging stones and building your own pool terrace for the perfect pool surround

    8. December 2024
    A gloved hand holds a white stick near a moldy wall. On the wooden floor, a silver packet labeled NOVUstick für nachträgliche Horizontalsperren contains 10 sticks for creating an effective horizontal barrier and improving drainage. www.commaik.de

    Drainage – retrofitting a horizontal barrier yourself

    24. January 2024
    Various X-Sense smoke detector products, their packaging, mounting stickers, and a fire extinguisher are arranged on a wooden table with tools hanging on a pegboard in the background. www.commaik.de

    Network wireless smoke detectors across several floors: How X-Sense Link+ protects your whole house!

    21. July 2025
  • Laying the water pipe in the garden: tips for connecting the water supply to the garden irrigation system

    Open trench in a paved area with exposed cables, pipes, and a water pipe in the garden, surrounded by loose soil, bricks, and paving stones—signs of ongoing underground utility or lawn irrigation work. www.commaik.de

    Laying a water pipe in the garden is a crucial step for efficient garden irrigation and reliable lawn watering. In this project, the pipeline had to be routed under an existing cobblestone path. The paving stones were removed, a trench dug and the pipes laid together with empty conduits for control and power cables. In addition to the right choice of material, frost resistance also plays an important role. The entire process – from planning and leak testing to restoring the sidewalk – is described in detail in this article.

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    A pair of secateurs lies on a wooden board and cuts a branch in the midst of green plants and flowers in a sunlit garden, with a bench and a house in the background. www.commaik.de

    Bypass and anvil in comparison – find the perfect secateurs for your plants

    10. March 2025
    A red and black portable parking heater is displayed on a table with its components, including hoses, wires, a remote, clamps, a silver exhaust pipe, a vent, and a small black bottle in a wooden workshop setting. www.commaik.de

    Diesel parking heater for animal house, workshop and camper: My test of the Vevor 8kW heater

    3. January 2025
    A gloved hand holds a white stick near a moldy wall. On the wooden floor, a silver packet labeled NOVUstick für nachträgliche Horizontalsperren contains 10 sticks for creating an effective horizontal barrier and improving drainage. www.commaik.de

    Drainage – retrofitting a horizontal barrier yourself

    24. January 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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