Can I concrete around ABS?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by manintrees, Nov 5, 2009.

  1. manintrees

    manintrees New Member

    Messages:
    10
    Location:
    Squamish, BC Canada
    I am building a bathroom in an unfinished basement and have removed a chunk of the slab to put in a shower and toilet. I have roughed in the plumbing and was wondering what I should do when it is time to pour the concrete. Should I wrap the ABS in something so the concrete doesn't contact it? Thanks for your time!
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,242
    Location:
    Cave Creek, Arizona
    Abs

    Some areas around here want it tape/wrapped, but most do not. I have NEVER wrapped any ABS risers coming out of the concrete.
  3. manintrees

    manintrees New Member

    Messages:
    10
    Location:
    Squamish, BC Canada
    Thanks a bunch. This is a great site!
  4. Spaceman Spiff

    Spaceman Spiff Architect

    Messages:
    277
    Location:
    Salt Lake City, Utah
    I usually wrap in a layer of that thin foam "sill seal". It allows me to jackhammer the concrete out if I need to and allows for expansion/contraction when it gets hot/cold. One inspector I dealt with required it...
  5. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    Yep, either sill seal or they make a cap called a red had that keeps the concrete away from the pipe.
  6. manintrees

    manintrees New Member

    Messages:
    10
    Location:
    Squamish, BC Canada
    What a weird and fortunate coincidence. I assumed that something was needed so I wrapped the pipes in sill gasket a few days ago. I posted the thread to see if that would suffice. Thanks guys.
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