Wall Hung Toilet Vent Location

Discussion in 'Canadian Plumbing Code Questions' started by McSorley, Sep 9, 2018.

  1. McSorley

    McSorley New Member

    Joined:
    Nov 11, 2017
    Location:
    Alberta
    Hello

    I am completely gutting an existing 3 pce bath and converting to a 4 pce with a Gerberit wall hung toilet. My location is rural Alberta near Calgary. All existing DVW pipes are ABS about 35+ years old.

    There is an existing 3” waste stack from the basement to just below the main floor that converts to a 2” vent that runs up thru the 2x4 plumbing wall, up to attic & then enlarges to 3” just before it exits roof.

    Enclosed are 4 sketches: 1 Floor Plan & 3 plumbing wall options.

    These are listed in order of preference & headroom.

    Option ‘A’ : 1 ½” wet vent off of 2” shower drain that attaches to stack downstream from toilet

    Option ‘B’ : 1 ½” wet vent off of the 3” stack downstream from toilet

    Option ‘C’ : 1 ½” dry vent drilled thru joist ( tight quarters) to 3” stack upstream from toilet

    I would appreciate any comments on the venting & drain pipes. Thanks
     

    Attached Files:

    Last edited: Sep 13, 2018
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    I like A best.
     
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    Your toilet is going to flush very good, (because it is UNvented), but NONE of the drawing have an effective vent for the toilet.
     
  5. McSorley

    McSorley New Member

    Joined:
    Nov 11, 2017
    Location:
    Alberta
    Thanks Terry & HJ for the replies.
    HJ, you mentioned there wasn't an effective toilet vent.
    What could be dome to remedy this or is it not worth worrying about?
     
  6. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    To be an "effective" vent it should connect BEFORE the drain turns downward.
     
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