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Old 03-29-2015, 02:54 PM   #1
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kitchen sink draining issue


I am having a problem with my kitchen sink draining. Whenever I drain a large amount of water i.e. dishpan full. I hear water splashing in the basement. when I went to check there is a y shaped joint in my pvc pipe. There is what looks like a cap with a small hole in it and the water is spurting out of it. It is a manufactured hole not a crack or anything like that. I have zilch knowledge of plumbing. Is there supposed to be an opening in this cap or should it be replaced with a solid cap. I know that cap is probably not the correct word, but the y shape looks like another pvc pipe should join in there but there is no additional pipe to join to, so I was guessing that it is there to stop water from spurting out. Can someone shed some light on this. Thanks

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Old 03-29-2015, 06:17 PM   #2
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kitchen sink draining issue


It's anyone's guess what it is without a picture.

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Old 03-29-2015, 06:49 PM   #3
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kitchen sink draining issue


Sounds like you're describing a cleanout. You remove the cap and snake the line from there if it's clogged. There is no other pipe that goes there. Why someone put a hole in the cap, idk. There should not be a hole in it. Maybe a venting issue?? Just guessing.

Please post a picture when you can. Thanks.

Last edited by jmon; 03-29-2015 at 06:52 PM.
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Old 03-29-2015, 08:09 PM   #4
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kitchen sink draining issue


Does it look sorta like this? maybe different color and size. If so you should be able to just unscrew the plug and get just that from a good lumber yard or plumbing place.
http://www.terrylove.com/images/home...chanoid_03.jpg
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Old 03-31-2015, 09:19 PM   #5
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kitchen sink draining issue


I would have to agree that the hole got put in there for a venting issue, but will add that if you have water squirting out of the hole, you have a blockage in the line. A free flowing drain to me does not make water leak out of a properly installed cleanout. I would remove the cap, snake the line and put a new cap in. If you have a vent issue, they make a mechanical vent you can plumb into the cabinet space under the sink.
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