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Thread: O/T: Finding under ground (12") PVC water line? Is there a way.

  1. #1
    Join Date
    Aug 2004
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    Sunny So Cal
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    5,116

    Default O/T: Finding under ground (12") PVC water line? Is there a way.

    I have an off shout of the copper main to some other copper and PVC. The PVC was fitted with a valve but it is missing. I need to find the buried main to install a new valve.

    Deep Kimchi over here right now. JR
    My old yahoo group. Bridgeport Mill Group

    https://groups.yahoo.com/neo/groups/...port_mill/info

  2. #2
    Join Date
    Mar 2012
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    south east South Dakota
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    65

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    If you can put your hands on a 200' steel electricians fish tape, and can get it into the line any locator firm can connect to it and send a signal through it. That would give you very accurate location. Good luck!


    Cat

  3. #3
    Join Date
    May 2002
    Location
    SE Texas
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    12,488

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    I went to a lot of trouble to find my sewer connection. I did a lot of probing with metal rods. With PVC you will have to be careful, but it can be done. And if your soil is hard, you may have to water it with the sprinklers to soften it up. With a 12" pipe, you can probe every 8 or 9 inches and you can't miss it. Is this a farm or industrial building? Would the city/county have information?

    Logic is on your side. If you are in the city, then the water department can, at least, tell you where their main line is. In the country side, talk to the county. You know where the water is going in your building or possibly outside, that should narrow it down somewhat. Perhaps the city/county will also have some records of where the tie-in is and you can follow it from there. Or try to follow it out from the house or other point of use if you can find where it enters. And you probably have a meter so that is a definite starting place.

    The reason why I had so much trouble finding my sewer connection was that I was assuming it was in the front. But it was in the back yard instead. When I finally realized that and knowing where the rear-most bathroom was, I found it in two or three probes. Logic. And I should have talked to the city first; that would have saved a lot of work.
    Paul A.

    Make it fit.
    You can't win and there is a penalty for trying!

  4. #4
    Join Date
    Aug 2012
    Location
    Warwickshire, UK
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    Now you know why these pipes are supposed to be laid with a warning tape over them containing a tracer wire, Find it at one point, no trouble at all with a detector to follow the pipe.
    'It may not always be the best policy to do what is best technically, but those responsible for policy can never form a right judgement without knowledge of what is right technically' - 'Dutch' Kindelberger

  5. #5
    Join Date
    Aug 2012
    Location
    Warwickshire, UK
    Posts
    857

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    Your PVC comes off copper but according to the thread title its 12" PVC. How big is the copper for goodness sake?
    'It may not always be the best policy to do what is best technically, but those responsible for policy can never form a right judgement without knowledge of what is right technically' - 'Dutch' Kindelberger

  6. #6
    Join Date
    Jan 2003
    Location
    Chilliwack, B.C.
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    11,804

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    He must have meant 1/2 inch pipe. You could try a sensitive listening device. Have some water running and move the mic around the ground till you find where it's loudest. Never tried it myself but I've heard of it being done.
    I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

  7. #7
    Join Date
    Dec 2009
    Location
    Stevens Point, WI
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    How deep?
    Andy

  8. #8
    Join Date
    May 2015
    Location
    Somerset UK
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    Easy, just use a 13" long spade.

  9. #9
    Join Date
    Sep 2015
    Location
    NW Illinois
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    774

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    Gonna have to dig for it.

  10. #10
    Join Date
    Mar 2013
    Location
    Hightstown, NJ
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    1,647

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    Get someone with a drone to look down on your property. Back filling is seldom perfect and you can often see the path clearly from above.

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