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Thread: Can I concrete around ABS?

  1. #1
    DIY Junior Member manintrees's Avatar
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    Default Can I concrete around ABS?

    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. #2
    Moderator & Master Plumber hj's Avatar
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    Default 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. #3
    DIY Junior Member manintrees's Avatar
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    Thanks a bunch. This is a great site!

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    Architect Spaceman Spiff's Avatar
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    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...
    Spaceman Spiff aka Mike

  5. #5
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    Default

    Yep, either sill seal or they make a cap called a red had that keeps the concrete away from the pipe.

  6. #6
    DIY Junior Member manintrees's Avatar
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    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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