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-   -   Kitchen sink P-Trap location question. (

kgphoto 09-18-2008 11:01 AM

Kitchen sink P-Trap location question.
Due to layout changes, that happened before I was asked to get involved, the stub out for the kitchen drain is 24 inches to the side and 13.5 inches lower than the center of the sink drain hole.

So my question is, should I attach the p-trap at the wall and then go over to the sink (at 1/4 inch per foot rise) and then use a tall tail piece, or should I angle up with sweeps or 45's and put the p-trap by the sink?

Also, would adding a clean out there be good as once I cement in the ABS you won't have a straight shot into the wall for snaking later.

I also want to maximize storage room, so raising the pipe up under the sink for the lateral is appealing.

Thanks for any guidance you can provide.

Termite 09-18-2008 11:49 AM

Your trap should be immediately under the sink tailpiece. You can then run over and downhill to the wall stub.

kgphoto 09-18-2008 11:58 AM

I wondered if 8 inches of fall in 2 feet would cause a rush of water that might evacuate the p-trap.

What do you think of adding a clean out wye just before the wall?

Termite 09-18-2008 01:11 PM

No, I don't think the trap will suck dry. The typical kitchen/bathroom sink trap is removable, therefore a cleanout is not required.

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