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Old 07-22-2009, 11:56 AM   #1
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P Trap leak

I had to replace the pop up drain in my bathroom sink. I'm reattaching the p trap, and the back part that connects into the pipe coming out of the wall leaks. I am using the same pipes, and they did not leak before. What am I doing wrong?

I did take the p trap off to put the pop up drain in place. Is it possible I lost a washer somewhere?



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Old 07-22-2009, 12:24 PM   #2
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It is likely that you dropped a nylon seal out of the trap. Should be 1-1/4". Look around the floor for it. Most are light in color (like silicone colored) and can easily be missed.


If you have never made a mistake, you haven't done much.
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Old 07-24-2009, 03:45 AM   #3
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I've just recently got into having to do some plumbing here and there to my own problems and helping some other people out so take what I have to say lightly. When you say coming out of the wall I am assuming you talking about incoming water and not a drain. If you are talking about the screw on lines then just like already stated you probably lost a gasket somewhere.. Happened to me. If you are talking about actual incoming pvc water supply then be sure you have used primer following a generous supply of pvc glue on top of the primer before reconnecting.
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