No Future Vent In Basement--Where do I vent Toilet, Sink and Shower

Discussion in 'IPC Plumbing Code Questions' started by Harry Harshaw, Mar 3, 2020.

  1. Harry Harshaw

    Harry Harshaw New Member

    Joined:
    Mar 3, 2020
    Location:
    Marietta, GA
    Builder built this house in 99. Stub outs exist for all three W/C, Lavatory, and shower. Builder did not install future vent in basement ceiling piping that services any drains or existing vents. I have horizontal 3" PVC lines running to eventual 4" lines. I also have a washing machine drain above in the adjacent basement closet. I live in Cobb GA. Need to know if 1. I can run a wet vent into existing 3" horizontal drain line, OR install outside wall vent that does not goto roof OR do I just rub a 2" pipe up the wall into the washing machine room tie vent into the existing waching machine vent line?
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Is the lavatory stub out in the basement? What does that look like, and if it is in the basement, what makes you think there is not a vent already?
     
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  4. frederickvan

    frederickvan New Member

    Joined:
    Mar 22, 2020
    Occupation:
    Plumber's Apprentice
    Location:
    Oklahoma, United States of America
    Install an air admittance valve under the lav.
     
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