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Kitchen Sink/Laundry Sink Drain Vent Non-exist
Asked Jan 12, 2006, 07:55 PM
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3 Answers The set-up from kitchen sink leading down to drain to basement: 1. Kitchen sink - (R side) - connected to a P drain I think you call it -PVC-, connected to a "metal" T, which has a Studer vent gizmo attached to the top of it, then draining into a metal pipe straight down to the drain in the basement. Pipe goes into concrete, then goes wherever. 2. Kitchen sink - (L Side) - have a garbage disposal that connect to the straight portion of are side (before the P part) 3. Dishwasher connectswith what apears to be a 3/4" flexible tube to the top of the disposal 4. Double sink in basement for th laundry - connected to a P drain, which connects directly to the same metal line coming down from the kitchen sinks, (no vent gizmo) Problems: 1. Dishwasher seems like it is getting the remains from the disposer? Is this possible? Always have to rinse the dishes of crud before finishing them off 2. The laundry sink emoties real slow, thank goodness it is a double sink. No vent stack anywhere. Can I add a pipe and tie it inot another vent stack? If I did, the closest vent stack would be running the vent pipe along the ceiling (basement), across the room about 15 feet then tying it into the existing bathroom vent, which goes through the roof? Ideas? Thanks |
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| You bet it's possible. Either you have failed to loop the dishwasher hose up as high as it will go and secure it with a pipe strap or you have a partial clog in the sink drain that's setting up a back pressure so it's forcing the disposal discharge intothe dishwasher line. My bet's on door #1. Three things you can do. (1) Loop the dishwasher hose if it isn't looped. (2) Cap off the disposal inlet and install a branch tailpiece on the right hand tub. (3) install a air gap on the counter top for the dishwasher hose. 2. The laundry sink emoties real slow, thank goodness it is a double sink. No vent stack anywhere. The laundry tray is attempting to vent through the AAV installed on the kitchen sink. Why not install one after the trap on the laundry tray? Also it sounds like you'll be snaking out the sink/laundry tray drain line in the near future. Good luck, Tom | ||||
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| Thanks for the info. I am going to try the loop deal for the dishwashewr first, because it is not looped. It comes straight out the side of the cabinet, onto the floor of the cabinet and eventually works it way to the top of the disposal. Makes sense now that I read it. I am guessing the loop up high kind of acts like a P trap deal, allowing pushed water to go one way, and not allow "unpushed" water the other way. I'll install a AVV vent "after? " the P drain deal on the laundry sink. Had to snake it out already, that what brought on all the questions. Thanks a lot for the info, should help to make things flow. | ||||
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| We call that loop in the hose a "drip loop" and it prevents just what's happening to you. Just loop th hose up as high as itwill go and I predict your problem will be solved. Hold off on the laundry tray vent and see how it goes. Cheers, Tom | ||||
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