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Thread: Water leaking from behind wall. Please help.

  1. #1
    DIY Junior Member Backwardsman97's Avatar
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    Apr 2010
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    Alabama
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    Default Water leaking from behind wall. Please help.

    Well recently I've been hearing a constant dripping sound from behind my tub faucet. But just today when I took a shower, the carpet touching the wall behind the faucet was wet. Obviously there is some kind of damage to the main pipe going to the faucet but I dont know how to access it except by cutting a hole in the wall behind the faucet. What can I do???

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    Sep 2004
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    First thing I'd do is take the handle and eschution off the tub/shower control and look behind to see if I could see what was going on. YOu have to determine if it is leaking from water finding its way from inside the shower out, or from a leak behind the wall. This may help you make that determination. Another thing you could do is fill the tub. Let it sit. See if you have any leaks. If not, then drain the tub, then look for leaks. This would help isolate it between drainage system and supply system.

    It is also possible that the tub spout seal isn't great, and when you pull up the diverter, that pressure in the tub spout is allowing some water to leak back along the spout's pipe, back into the wall. This could be a problem with the pipe or the spout.

    Generally, unless you have galvanized pipes, after a long time, leaks aren't that common in the supply piping...could happen, though. There have been some problems ove rthe years with some plastic piping systems, and this may be the tip of the iceburg leading to a whole house repipe, but hopefully, is an isolated problem easily fixed.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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