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    Water pipe depth


    What depth should I expect a water pipe to be? To clarify, I'm based in the UK.

    Asked by Elly on 7th Jul 2022
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    Steve plumbing

    "There is a minimum and maximum depth at which service pipes should be laid:

    Minimum depth is 750 mm
    Maximum depth is 1350 mm.
    If an installer wishes to install a service pipe either deeper or shallower than these depths they must notify the local water supplier for permission.

    Important note: The gas service should be at 600mm to ensure separation from the water service pipe."

    Answered on 11th Jul 2022 - Member since Jul 2022 - report
    GJackson plumbing

    "1st Floor 1/ 8th of an inch in depth of joist, ground floor below screed 4 inch, outside ground 750 mm"

    Answered on 7th Jul 2022 - Member since Sep 2017 - report
    Power of Details

    "Atleast 60centimeter ,the UK is not that "cold" country ,so the 60centimetter enough but for example in Russia or any east Europe country needs to dig atleast 1meter ,because the pipe will freeze out ."

    Answered on 15th Jul 2022 - Member since Jun 2022 - report
    Sussex Wetrooms

    "I assume you are talking external depth underground!
    If so then the pipework should be a minimum of 600mm underground.
    Now that is true for new installations but some historic installations could be set at a shallower depth."

    Answered on 7th Jul 2022 - Member since Jan 2021 - report
    New World Plumbing& heating

    "If you mean a cold main water pipe under ground into your property needs to be 950mm deep"

    Answered on 7th Jul 2022 - Member since May 2017 - report
    Ram property

    "If your talking mains water they should be a minimum of 600 mm but some areas now say 750mm"

    Answered on 11th Jul 2022 - Member since Apr 2022 - report
    North London Plumber

    "Blue water supply MDPE should be laid in a trench at a depth of at least 750mm (measured from the pipe crown), but no more than 1350mm, from the finished ground level and at least 350mm away from other utilities (such as gas or electricity). Some water authorities allow MDPE to be laid at a shallower depth, depending on circumstances, but must be insulated"

    Answered on 8th Jul 2022 - Member since Feb 2019 - report
    Self employed

    "I always thought it was two foot six or 76 cm .
    If you do a few google searches then you will find either ;
    The Water Regulations .
    The Building Regulations .
    Both will state the same depth"

    Answered on 4th Aug 2022 - Member since Oct 2021 - report
    Finch heating

    "Should be a minimum of 750mm according to the water regs"

    Answered on 22nd Jul 2022 - Member since May 2022 - report

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