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Mystery leak

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  • Mystery leak

    We are going mad with a mystery leak, several times have found substantial puddles directly below the shower drain in the utility room directly downstairs from the bathroom. Always after taking a shower. Several times while no one else was home and no other water being used in the house. Once even came downstairs to find drips still coming off the shower drain pipe. Can NOT recreate the leak. Have tried running the shower for several minutes, walking around in the tub with the shower going, filling the tub (always happens after a shower though), flushing the toilet. Can not find what is causing this leak. This is not a couple of drips but big puddles. Two plumbers have been out and we cannot recreate the leak with the plumber there. Any ideas, or any kind of systematic way of isolating possible problems?

  • #2
    Re: Mystery leak

    make sure all spouts, escutcheons or cover plates are sealed, including the shower arm. is this a plastic/fiberglass shower, or tiled?
    ~~

    ... it was plumbed by Ray Charles and his helper Stevie Wonder

    Comment


    • #3
      Re: Mystery leak

      Originally posted by Plumber Punky View Post
      make sure all spouts, escutcheons or cover plates are sealed, including the shower arm. is this a plastic/fiberglass shower, or tiled?
      This is a tiled tub/shower. We have examined all visible areas for signs of cracked grout or caulk etc. Thanks though we can look again.

      Comment


      • #4
        Re: Mystery leak

        Sounds like a bad tile job. Tile needs a proper waterproofer behind it. Most grout & some tile are not waterproof. Most grout needs to be sealed every 2 years.

        Another thing it could be is when taking a shower is the shower curtain on the outside of the tub ?

        Who is taking a shower when this happens ?

        Comment


        • #5
          Re: Mystery leak

          Originally posted by MR.FUDD View Post
          Sounds like a bad tile job. Tile needs a proper waterproofer behind it. Most grout & some tile are not waterproof. Most grout needs to be sealed every 2 years.

          was thinking this, too. or, if plastic, the panel drains were plugged
          ~~

          ... it was plumbed by Ray Charles and his helper Stevie Wonder

          Comment


          • #6
            Re: Mystery leak

            Put a pressure test on the tap-set. Could also be the spindles on the tap set leaking

            Comment


            • #7
              Re: Mystery leak

              Fill tub to overflow drain and than drain it. Ck for leak downstairs. If no water shows up cap shower arm and spout nipple and ck again for leak. Finally if no water shows up hold a plate or tupperware lid up to shower head and direct water on valve wall and see if leak shows up. also run water on other tile walls but ck valve wall first.

              Comment


              • #8
                Re: Mystery leak

                If it only happens while the shower is running, I would look for a leak between the valve and the shower head, because that part only has water in it while the shower is runing.
                You may have to open some drywall to find it, but Im betting thats it.

                Comment


                • #9
                  Re: Mystery leak

                  Originally posted by The Bear View Post
                  Fill tub to overflow drain and than drain it. Ck for leak downstairs. If no water shows up cap shower arm and spout nipple and ck again for leak. Finally if no water shows up hold a plate or tupperware lid up to shower head and direct water on valve wall and see if leak shows up. also run water on other tile walls but ck valve wall first.
                  This is the most reliable way to test a tub and shower.

                  Comment


                  • #10
                    Re: Mystery leak

                    Originally posted by cincy plumber View Post
                    This is the most reliable way to test a tub and shower.
                    And pour some water outside the tub.

                    Comment

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