Sketch of Bathroom Project

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by billl, Feb 8, 2008.

  1. billl

    billl New Member

    Messages:
    2
    Attached is a sketch of the basement bathroom I'm adding.

    The 3" drain at the bottom of the sketch connects to the old 4" cast iron a ways to the right. From the left it picks up a half bath one floor above this bathroom. The drain between the sink and 2" shower branch would be partly in the wall. All other 'green' drain lines will be under the floor.

    1) Is it necessary to run the relief vent at the toilet or can I rely on the sink vent?

    2) Same question for the shower drain/trap. Can I skip the vent and let it wet vent up to the sink and then dry vent all the way through the roof?

    Attached Files:

    Last edited: Feb 21, 2008
Similar Threads: Sketch Bathroom
Forum Title Date
Plumbing Forum, Professional & DIY Advice Will this bathroom work? Please see sketches. Jul 3, 2012
Plumbing Forum, Professional & DIY Advice waste and venting sketch May 13, 2013
Plumbing Forum, Professional & DIY Advice Can you tie lav drain into a toilet vent (wet vent)? W/SKETCH Jan 26, 2012
Plumbing Forum, Professional & DIY Advice DWV Setup/Suggestions With SketchUp Aug 26, 2010
Plumbing Forum, Professional & DIY Advice Yet another vent question....(sketch) Mar 25, 2008

Share This Page