Circuit venting question

Discussion in 'Plumbing Code Questions' started by jayare, Apr 18, 2013.

  1. jayare

    jayare New Member

    Apr 18, 2013
    Alberta, Canada
    Hey guys, long time lurker, first post. Sorry for the terrible drawing, but im just wondering if this bathroom group is properly circuit vented, it one water closet, a tub, a shower and two lavs. The dotted lines are the vents. Any corrections are appreciated. Im in Alberta btw.

    Attached Files:

  2. Sean Beck

    Sean Beck Plumber

    Jun 14, 2013
    Toronto, Ontario, Canada
    Would probably be easier to wet vent everything upstream of the toilet, providing you have room for a 3" pipe. Run 3" upstream of the toilet, all the way to the double tee wye of the 2 basins. A 3" wet vent serving a toilet can take up to 8FU (fixture units). Bathtub (1.5) + shower (1.5) + 2 basins (1 each) = 5FU
  3. Sponsor

    Sponsor Paid Advertisement

  4. frodo

    frodo New Member

    Jun 29, 2013
    run a 4" trunk line, up to the 4x3 y with 3" stubbed up in the wall between the sinks. with a 3" vent
    and bring a 3" stack vent up in the toilet wall to serve the trunk line revent the 3" sink vent back into the 3" vent stack[​IMG]

    disregard the 2" on the sink vent....supposed to be a 3
    i am assumeing this is a commercial bathroom
    Last edited: Jul 5, 2013
Similar Threads: Circuit venting
Forum Title Date
Plumbing Code Questions Peninsula venting in level counter Jul 13, 2017
Plumbing Code Questions Bathroom venting Jun 4, 2017
Plumbing Code Questions Safe and proper venting? Feb 27, 2017
Plumbing Code Questions Applicable venting for basement bathroom. Jan 30, 2017
Plumbing Code Questions Venting using a horizontal drain from kitchen sink OK? Dec 16, 2016

Share This Page