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Plumbing P-Trap Leak


plumbing P-trapA plumbing leak at a sink trap can caused by several things. First, investigate the leak to make sure it is actually coming from the P-trap. You may find that the leak is coming from somewhere higher up than the trap and is just dripping from the trap since it is the lowest point on the drain piping. If you have determined the leak is from the trap, then you can unscrew the fittings on both ends of the trap and dump out the water into a bucket.

Inspect the trap for cracks, and look closely at the ends where it threads onto the joining piping. In many cases, the nut can be cross threaded and not properly sealed. This may be the case if the slip nut is very hard to unscrew and doesn’t unscrew smoothly. Screwing this slip nut carefully back on the pipe may fix it.

Also look at the washer to see if it is damaged. If it is split or damaged, it will allow water to pass and leak. Replacing this washer will fix the problem. By the way, you won’t need to use Teflon tape on the threads as these joints are not under pressure.

Obviously, if the P-trap is damaged or cracked, you will need to replace it.


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