Sink with disposal (Insinkerator Evolution Cover Control Plus) backs up and drains slowly






Dan asked 4 weeks ago

If I just run the water in the sink after about 15 seconds the water starts to backup into the basin. If I turn on the Insinkerator Evolution Cover Control Plus disposal it spins and runs fine. The sink will eventually drain, but it takes 40-60 minutes.

I have already pulled apart the PVC drain lines and they are all free and clear.

I briefly tried using a plunger, but that didn’t change anything… I do have a dishwasher that drains to this, so I think the dishwasher drain line might have prevented me from truly having a closed circuit.

I welcome your advice.

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