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Old 11-28-2021, 03:31 PM   #1
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Clogged Pipe from Kitchen Sink

Anyone have schematics for the plumbing on a 2015 Silverback? Water isn't draining from the kitchen sink and we checked the first u joint. It's clear. Where should we look next?
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Old 11-28-2021, 04:10 PM   #2
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By U joints I assume you're talking about the P trap? Ensure your tank vent on the rooftop is not obstructed with insect nests. If not, then run a sewer snake through the drain line under the sink. Is there a possibility that the tank is full?
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Old 11-29-2021, 08:29 AM   #3
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welcome to the forum its a great place to get your questions answered. I agree with DW on possible fixes. Let the forum know what you find or fix. Don't believe your tank level indicators drain the galley tank. JMHO
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Old 11-29-2021, 08:31 AM   #4
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Could a failed Air Admittance Valve cause this issue?
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Old 11-29-2021, 08:53 AM   #5
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Originally Posted by Mr. Dan View Post
Could a failed Air Admittance Valve cause this issue?
I wouldn't think so since the tank is vented.

Beyond the suggestions given, I'd tell the OP to be sure the tank isn't full (indicator lights are notoriously inaccurate) and/or the possibility of having a galley tank and drain they don't know about. Sometimes there is a tank drain far away from the sewer and shower/bath drains, especially on rear kitchen models.
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Old 11-29-2021, 09:27 AM   #6
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Quote:
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I wouldn't think so since the tank is vented.

Beyond the suggestions given, I'd tell the OP to be sure the tank isn't full (indicator lights are notoriously inaccurate) and/or the possibility of having a galley tank and drain they don't know about. Sometimes there is a tank drain far away from the sewer and shower/bath drains, especially on rear kitchen models.

That’s why I posed my entry as a question. I wonder why my Wildcat has an AAV for the galley sink. Maybe it’s because my sink is in an island in the middle of the floor. Dunno. Click image for larger version

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Old 12-01-2021, 05:25 PM   #7
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I THINK it’s to keep the drain from gurgling if you’re draining a sink full of water. Not positive though.
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Old 12-01-2021, 07:17 PM   #8
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That’s why I posed my entry as a question. I wonder why my Wildcat has an AAV for the galley sink. Maybe it’s because my sink is in an island in the middle of the floor. Dunno. Attachment 266200
An AAV aids in sink draining without pulling the water out of the trap. The tank vent aids in tank draining and release of pressure in the tank.
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Old 12-02-2021, 11:14 AM   #9
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Follow Mr.Dan’s advise as that was the problem with my kitchen sink
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Old 12-04-2021, 11:44 AM   #10
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Solution Found

Thanks everyone! Sensor was wrong and the tank was full, so opened it up and all is well. It's usually the simplest things, right?
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Old 12-04-2021, 07:44 PM   #11
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Glad it was that easy!
Thanks for coming back and letting us know, many don't.
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