Island Sink Venting

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New York
Yep. Can't do that. The Island vent needs to be able to drain itself down.

I found this thread and have a question which I think was unanswered from the original thread....

Can someone explain why the loop part of the drain that is inside the kitchen cabinet has to be all the way to the countertop line before looping back down under the floor?

Can the loop be a few inches below countertop line (maybe a few inches above the sink drain?) so that I don’t have to cut my kitchen cabinet?

Is it absolutely necessary or required to to the max below countertop?

If it is absolutely necessary to go to the max below countertop then I will have to find a place the piping in a slightly different position in the cabinet which allows not to damage the cabinets structural integrity.

Thanks in advance
Hey, wait a minute.

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