![]() 05/03/2020 at 14:45 • Filed to: None | ![]() | ![]() |
About a year ago we started seeing a small water stain in our downstairs ceiling in one spot right underneath our shower/tub upstairs. I tested some theories and decided in the end it seemed to be a result of bathtub splashing by my daughter. I put silicon between the tub and the tile and did a shoddy drywall patch on the wet spot. We lived in bliss for a year until... about a month ago the spot reappeared.
I remembered that around the time we dealt with this last year and again recently; we had had some tub backups(I love my wife and daughter but their hair causes me a lot of work). I tried snaking the drain and got the water moving decently but the drip from the area got worse.
We switched to using the downstairs bathroom for the last two weeks. Today I cut a hole in the closet drywall to see where the drip seemed to be coming from when I investigated two weeks ago. Then I turned on the water and there was no drip; not when I filled and let it drain, not when I ran the shower; no drips.
My current theory is that where a connector and pipe meet of the vent pipe is where the leak is but it only happens when the water backs up at a certain point(after the junction of the vent with the bath pipe). So a backup more towards the tub causes no leaking . But on the bright side, now that I’ve got my hole in the closet wall I just need to wait for the leak to return.
![]() 05/03/2020 at 15:07 |
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Fill the tub until water starts to drain out of the overflow. Then check for drips.
![]() 05/03/2020 at 15:09 |
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Water is the most social element on earth. I hate to say this but leaking directly beneath something is never a definitive reason to believe the leak is coming from that something. Until you can prove otherwise.
![]() 05/03/2020 at 15:12 |
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It is definitely related to using the tub/shower- the timing makes it clear. But the whole reason I cut the hole was for confirmation of where it’s coming from. But your point is well taken.
![]() 05/03/2020 at 15:18 |
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If you didn’t see a leak around the tub drain gasket, I’ll bet you a beer that it is the overflow gasket. Two screws behind the chrome piece keels the overflow neck snugged up against the back side of the tub. That gasket gets janky over time...or the screws loosen off.
![]() 05/03/2020 at 15:20 |
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Less a point than an abstract thought which might ultimately prove helpful. Appreciate you not outright dismissing it though.
![]() 05/03/2020 at 15:22 |
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Oh yeah....another thing I’ve seen is that the overflow down pipe doesn’t get glued into the drain tee....it just gets pushed in and forgotten. Then leaks happen at that joint when you have a “deep bather”
![]() 05/03/2020 at 15:27 |
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If it’s dripping with people in it, but not when it’s empty, try running the shower and having someone splash the walls. Maybe a wall fixture isn't caulked, and it's running down the wall and behind a fixture.
![]() 05/03/2020 at 15:46 |
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Home ownership:
![]() 05/03/2020 at 16:07 |
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How old is your house? Mine is built in the 50s, which means galvanized or cast iron drain pipes. Those that haven’t yet been replaced will inevitably leak. The accessible ones have all been changed, but the stuff in the walls...well, let’s say i also have an upstairs bathroom I don’t use.
![]() 05/03/2020 at 21:13 |
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At my grandmothers the gasket to the shoe was gone, and if it wasn’t cleaned out would leak. My grandparents did that every couple months f or years. One day My uncle went to clean it and punched a hole straight through the shoe.
![]() 05/03/2020 at 21:17 |
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Yep, I’m 95% sure that’s what is wrong with my shower. Except getting a plumber to come out during the corona for a non-emergency is, well, I’m gonna be waiting a while.