Question: Connecting vents below flood height of highest fixture?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by noahchase1, Aug 3, 2020.

  1. noahchase1

    noahchase1 New Member

    Joined:
    Aug 3, 2020
    Location:
    oklahoma
    Non plumber here. My rough in failed inspection today because of this statement printed on the inspector's report:

    Vents should be 6” above flood-level rim of fixture before offsetting horizontally. Vents shall rise to 6” above flood-level rim of fixture served before being connected to any other vent.

    After doing some research, I understand the issue at hand, which is the vent is running horizontal and could possibly cause an issue in case of a clog. However, I cannot figure out a solution. This is a freestanding clawfoot tub with no walls within a few feet of the drain. So it's not like I can just extend the drain upward to vent. Can someone please explain a fix on how I can reroute the lines to make this code compliant? I'm in OKC. Thanks.

    https://imgur.com/2irWmcJ
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    I presume that wye is in the horizontal plane.

    Stick a lavatory above that pipe above the ladder. Then you will have a proper wet vent, which can go horizontal. Insulate to prevent the lavatory plumbing from freezing.

    If you need that to be a dry vent and putting a lavatory in won't work for you, I think there could be an alternative from somebody else.
     
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