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Thread: Basement Dap Out has Water

  1. #1

    Default Basement Dap Out has Water

    Hello,

    I'm fairly new to plumbing and am attempting to finish off a basement bathroom. The vent/waste system was roughed in during construction of the home. A dap out was left for the shower drain. It was not trapped and only a stub of 2" pvc protrudes into the dap out space. The drain pipe sits very close to the bottom of the dap out. So to install the trap I began to dig away some of the gravel to add depth for the trap. Much to my surprise I noticed that there was some water beginning to appear after digging down about 4" beneath the basement floor slab. My thought is that this is the water table. I don't know if this is a problem or not. My initial thought is yes this is a problem. If it is a problem, I'd really appreciate some advice on how to handle it. Thank you in advance.

  2. #2
    Moderator & Master Plumber hj's Avatar
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    Default water

    If that is the water table, then there is little you can do about it, except hope it does not rise any higher.

  3. #3

    Default Water Table

    Thanks for the reply. My initial thought is to put a plastic sheathing underneath the trap and drain and fill the dap out with concrete. Any thoughts on that?

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