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Thread: Removing water from P trap/drain

  1. #1
    DIY Junior Member
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    Aug 2006
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    Boise, ID
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    Default Removing water from P trap/drain

    Hi,

    I'm remodeling an upstairs bathroom, have demo'd the old (concrete) tub/shower and am preparing to install a jetted tub and freestanding shower, either Kerdi, Wedi or maybe Tile-Redi pan. I have to move and extend the existing shower bath drain, and Iím concerned about causing a flood to the 1st floor when I cut the connection to the P trap, with the water that is now standing in the drain. Can anyone tell me how much water I can expect to drain out, and does anyone have any tricks/tips for removing the standing water?

    Mike
    Nah, it's probably just condensation

  2. #2

    Default

    It's not that much. A few cupfuls (assuming it's a 2" pipe").

    Try a turkey baster.

    Or stuff a coiled hand towel down the drain.
    (important note: I'm not a pro)

  3. #3
    Engineer jdkimes's Avatar
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    Sep 2004
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    Littleton, CO
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    Tape a pipe or tube to a wet vac and suck it out...with the vacuum.

  4. #4
    DIY Junior Member
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    Default

    All good ideas, thanks - and sorry again for being a noob and accidentally double posting
    Nah, it's probably just condensation

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    The trap is normally a U about 4-6" across at the top, so you can figure the volume.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  6. #6
    I&C Engineer (mostly WWTP) Lakee911's Avatar
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    Columbus, OH
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    Default

    Quote Originally Posted by jdkimes
    Tape a pipe or tube to a wet vac and suck it out...with the vacuum.
    Thanks for the clarification ... I was wondering what the wetvac was for if I was gonna suck on it

    Jason

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