[paars]

I have a 3" soil drain line coming from a WC which is just in front of the main vent stack, also 3". Can I connect the drain from 2 sinks, approx. 2" downstream of the vent stack (1" downstream from the WC) without putting in a separate vent line for them? The idea being that the section of the soil line between the WC and the sinks will act as a 'wet vent' leading to the main vent stack.

[massplumber2008]

Hi Paars

You can connect into the vertical 3" vent pipe and run the drain for the sinks from there as long as the sinks are within 3-5 feet of the vent stack. If you excedd the 5 foot distance vent to sinks, you need to add a vent and connect it back into the 3" vent stack at 42-48" off the finish floor.

That make sense?

Mark

[paars]

That makes perfect sense. Makes it a lot easier as well.

Thanks Mark