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Old 10-12-2015, 11:47 AM   #16
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The only thing that made me think it might not be a simple clog is that it's been this way for 2 years and has never gotten worse or changed at all -- Doesn't drain whatsoever without running disposal (even if left for days), drains instantly with disposal running.
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Old 10-12-2015, 12:45 PM   #17
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Is there a studor or aav vent present under the kitchen sink somewhere. Is this a double or single sink.

Please post some pics under the sink. Thanks.
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Old 10-12-2015, 01:02 PM   #18
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Make sure drain line from the disposal is clear and free running.

If the drains are free and clear there may be an issue with the disposal itself. Not likely but have seen it before. Plug not remove, venting or air lock issue, etc.

Had a problem with a disposal, took it back, exchanged it for another one and it worked fine. I can't explain it.

Hope you get it figured out soon and up and running correctly.

The plumbers will be along shortly with more advice. Thanks.
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Old 10-12-2015, 08:16 PM   #19
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I'll post pics tomorrow and try one of the drill attachment snakes. The disposal itself seems okay -- if I disconnect it from the trap and just run water through it, it goes right through with no problem.

The plumbing there under the sink seems suspect though -- not only does the trap seem too deep, but the pipe enters the wall higher than the outlet from the disposal. And it's all glued, so I can't take any of it apart.
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Old 10-12-2015, 09:45 PM   #20
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The plumbing there under the sink seems suspect though -- not only does the trap seem too deep, but the pipe enters the wall higher than the outlet from the disposal. And it's all glued, so I can't take any of it apart.

Read what you wrote then think about it for a while.
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Old 10-13-2015, 11:45 AM   #21
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Well, obviously that's a problem, but if that were the only issue then I'd think the disposal would always have water in it, but not a never-draining sink.
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Old 10-13-2015, 06:00 PM   #22
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I was just pointing out another problem that causes excessive clogging.
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Old 10-13-2015, 10:31 PM   #23
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Yeah. One weird thing (it seems to me) is that the clog has never seemed to have gotten worse. If there were a regular clog in there, wouldn't you expect other gunk to start glomming on to it so eventually nothing would get through even with the disposal running? Or if the disposal shoves everything through, how can there not be enough of an opening for at least a slow drain to happen?

Forgot to get the drill snake, will hopefully have time this week.
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Old 10-14-2015, 07:22 AM   #24
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Several of us have mentioned the same thing a wetted vent and I am not sure you understood what we meant.

It is fairly common for vents to be shared. A lot of sinks have windows over them so it is also not uncommon for a vent pipe to only be a foot or so above the drain line. A disposal works like a pump when running.

If you have a completely blocked sewer line the pumping action of the disposal may be pumping the water into the vent pipe which then drains it to basement sewer line for the utility sink. This creates a siphon effect which sucks the water out of the trap of the utility sink.

Refer to the wet venting image on this page https://plumbing-leaks-faucets.knoji...vent-problems/

and substitute your kitchen sink for the lavatory and your utility sink for the john. That should help you understand what we mean. We suggest that you might be pumping the water to vent instead of gravity carrying it down the drain as designed.

Yes a kitchen drain can become that clogged when greasy stuff goes down a small pipe,
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Old 10-15-2015, 06:24 AM   #25
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Thanks, ColbyT. That's a good explanation. I will attempt a drill snake myself and then call a plumber if that doesn't work, and then see if clearing the drain fixes the other issues -- although oddly enough the utility sink hasn't been stinking lately.
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