Waste line clean out - how to seal now?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by jimfarrar, Nov 13, 2008.

  1. jimfarrar

    jimfarrar New Member

    Nov 13, 2008
    When my house was built a few years ago, the builder brought the waste line clean out up into the driveway. Then when the concrete driveway was poured, they never enclosed the cleanout in a vault box or frame and lid--it's just a smooth PVC pipe sticking up about 4" out of the driveway, with a light-weight press-in cap.

    I want to cut the pipe flush with the driveway and cap it but I'm concerned about not being able to seal the pipe since it's smooth preventing me from using a typical threaded waste line cap. And with the pipe embedded in concrete, I'm not sure what to do.

    Someone suggested cutting the pipe flush with the driveway and inserting a slip line with an expansion seal inside the pipe (vapor seal) then put a metal cap over that so a car can drive over it without damaging the pipe. However, I'm unable to locate an expansion type seal--does something like this exist?

    Any advice other than not use that builder again? Thanks.
  2. nhmaster

    nhmaster Master Plumber

    Jul 30, 2008
    Tech. Instructor
    S. Maine
    You need to get a plumber with the right tool to cut the pipe down below the concrete and install the proper plug.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    A TopKap which glues into the pipe, assuming it is the proper i.d., and has a flush plug would give you a smooth surface, then a flat metal cleanout cover with a center bolt to secure it would give the traffic capacity.
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