Posted 4/3/2011 19:26 (#1706499 - in reply to #1706474) Subject: RE: Plumbing question (slow draining bathroom sink)
DeKalb, IL
I think you've identified the problem: the vent pipe, if there is one, is probably blocked. Check the stack coming out of the roof and see if you can clean it out down as far as possible to open the drain vent and allow normal drainage.
Plumbing question (slow draining bathroom sink)
