help on venting a shower base

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Larry4, Nov 22, 2008.

  1. Larry4

    Larry4 New Member

    Messages:
    24
    I am installing a shower base on first floor with trap below in basement joist. How can you vent if there is no intersecting walls in the same joist line heading towards the soil line? The code states that you cannot run any vent horizonal until you are 6" above the flood level. Thanks for any input.

    Larry
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,316
    Location:
    Bothell, Washington
    Sometimes you are allowed vent horizontal below grade with waste fittings, that would be wyes and 45's.
    No Santees on the horizontal.
  3. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    You can run 6' with 2" pipe before you need to hit a vent.
  4. Larry4

    Larry4 New Member

    Messages:
    24
    Thank you for your input. OK to make sure i understand. I have a fiberglass shower base. I am going to trap below the subloor in basement. About 1.5' down from trap im going to install a 2" wye with a street 45 angled above the centerline of waste pipe. From there im going to come back past the trap to back wall and up to roof for vent. Is this OK for vent since there are no cross walls on way to soil line?
  5. Terry

    Terry Administrator Staff Member

    Messages:
    15,316
    Location:
    Bothell, Washington
    Sounds good to me.
Similar Threads: help venting
Forum Title Date
Plumbing Forum, Professional & DIY Advice Properly venting a toilet underslab, help please! Jun 25, 2014
Plumbing Forum, Professional & DIY Advice Venting or Blockage...Please help. Feb 19, 2013
Plumbing Forum, Professional & DIY Advice Help venting small bathroom in basemment Jan 7, 2013
Plumbing Forum, Professional & DIY Advice Please help - Need advise on trap and venting Feb 10, 2012
Plumbing Forum, Professional & DIY Advice help with venting Aug 14, 2011

Share This Page