Instructables

Can I add a kitchen sink (and dishwasher) drain to an existing vent from bathroom downstairs?

Im moving the kitchen sink to other side of room.  There is a vent pipe from basement bathroom running just under where the sink will be.  Can I attach the drain to the vent? I was going to use a cheater vent for the new sink.  If  I have to run the drain to the old (kitchen) drain, this will mean a new ceiling in finished basement room.

Yes you can. Chances are the existing sink ties into that vent anyway. You house should have one main vent stack that most the drains are tied into. There may be a second stack if there are pipes at the other end of the house. But check your local regulations regarding pluming. Consult with a licensed plumber if you can.