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Old 03-25-2019, 03:41 PM   #1
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P Trap Leak at gasket


I just installed a new P trap kit. This also includes a new pipe from the trap into the waste line in the wall.


Problem: The 1 1/2" pipe that curves down & attaches to the trap has a very slight leak. I found that somehow the gasket that seals the trap to the pipe developed a split & was cracked in half. I replaced the gasket with a heavy duty rubber gasket made for the job. I still have a very very minor leak, but still it is a leak. Since these connections are generally made only hand tight, I don't want to damage anything by over tightening.


I know its basic, but how do I stop this leak. All the other connections from the sink tailpipe, the adapter into the wall connection, the trap to the tailpipe connection are all working with no leaks. The only leak is from the trap on to the curved connection end of the pipe. Any suggestions. I'm not a plumbing experienced guy when it comes to leaks. Thanks.
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Old 03-25-2019, 03:51 PM   #2
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Re: P Trap Leak at gasket


If itís leaking where I have it circled there is no gasket that goes there
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Old 03-25-2019, 03:59 PM   #3
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Re: P Trap Leak at gasket


Replace the trap and wall pipe. They cost less than $5.

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Old 03-25-2019, 04:01 PM   #4
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Re: P Trap Leak at gasket


If you have a rubber gasket then must be a metal trap. It's OK to snug it up with a pair of channel lock pliers.
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Old 03-26-2019, 09:38 AM   #5
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Re: P Trap Leak at gasket


Quote:
Originally Posted by BayouRunner View Post
If itís leaking where I have it circled there is no gasket that goes there


Yes. Where you have it circled is my leak. I will remove the gasket & see what happens. It's a little confusing to me, because all my other drain traps have a plastic gasket under the nut, it the same place as you circled. I nee to take a closer look at the other installations & see If I find what makes the difference (gasket-no gasket). Thanks. I will try your fix!


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Old 03-26-2019, 09:54 AM   #6
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Re: P Trap Leak at gasket


On a PVC trap there is never a drain washer at that joint.

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Old 03-26-2019, 10:16 AM   #7
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Re: P Trap Leak at gasket


Clarify for us whether you have a PVC or metal trap and trap arm.
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Old 03-26-2019, 03:51 PM   #8
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Re: P Trap Leak at gasket


Quote:
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Clarify for us whether you have a PVC or metal trap and trap arm.
He posted a pix of a PVC trap.

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Old 03-26-2019, 04:18 PM   #9
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Re: P Trap Leak at gasket


Quote:
Originally Posted by rjniles View Post
He posted a pix of a PVC trap.

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yes I see your point but the op didn't post the pic first. He just referenced it for location of his leak.

Unless I am missing something. I don't see anywhere he suggests his trap is PVC
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Old 03-27-2019, 10:12 AM   #10
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Re: P Trap Leak at gasket


Back to the Op - (assuming PVC) make sure everything is aligned and fits without stressing before tightening.
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