Tire Tread Separated, Remodeled My Plumbing

[ShrimpBurrito]

Originally Posted by Wavery

I don't think that the sink has a "Vent out". That sink itself supplies all the air necessary for venting the drain. I could be wrong but it makes no sense.

The kitchen and bathroom sinks are both vented via a common vent to the lower wall, just above and to the left of the water heater (as viewed from under the sink). If you look from the OUTSIDE, you'll see the vent as a white louver a few inches in diameter next to the water heater exhaust.

Dave