piperca
Oct 4, 2009, 08:58 PM
I have added a sink to my bathroom, since I am remodeling it, and need some help with the DWV system.
Below is a photograph. I have highlighted the existing 2" vent in red, the new 1-1/2" vent in blue and the new 1-1/2" drain in green.
I cut the new vent into the existing vent that is supporting a toilet, sink and shower/bath, in the adjoining bathroom, and the kitchen sink. Is adding a sink to this vent, with a 1-1/2" vent line, a bad idea? If I step it up to 2", would that make much of a difference? I have read that a 2" vent can support 8 fixtures, is this true?
Also, the drain is a little high. It starts at the stack at 19" on center and ends up at 23+" at the new sink location. The only place I can move the sanitary tee is to between the purple lines on the stack, would this be too low?
http://i275.photobucket.com/albums/jj316/piperca/SDC11165-1.jpg?t=1254713420
Below is a photograph. I have highlighted the existing 2" vent in red, the new 1-1/2" vent in blue and the new 1-1/2" drain in green.
I cut the new vent into the existing vent that is supporting a toilet, sink and shower/bath, in the adjoining bathroom, and the kitchen sink. Is adding a sink to this vent, with a 1-1/2" vent line, a bad idea? If I step it up to 2", would that make much of a difference? I have read that a 2" vent can support 8 fixtures, is this true?
Also, the drain is a little high. It starts at the stack at 19" on center and ends up at 23+" at the new sink location. The only place I can move the sanitary tee is to between the purple lines on the stack, would this be too low?
http://i275.photobucket.com/albums/jj316/piperca/SDC11165-1.jpg?t=1254713420