P-trap install

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by lhoward145, Apr 17, 2008.

  1. lhoward145

    lhoward145 New Member

    Joined:
    Jan 15, 2008
    Removed fiberglass shower and building a ceramic tile shower. Will be installing Kerdi drain. If I place the new Kerdi drain on the existing 2" PVC vertical that exists the P-trap, the Kerdi drain will be 6" off the bathroom floor. That is to high given that I also need at least 2" above the drain for the curb.

    Question: Can I replumb the P-trap by moving it vertically down so the Kerdi drain can be lower? This will put bottom of P-trap near bottom of horizontal waste pipe.

    Thanks
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    From the outlet of the p-trap, it has to slope down from there.
     
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  4. lhoward145

    lhoward145 New Member

    Joined:
    Jan 15, 2008
    Not sure I understand. Can I reposition the P-trap lower?

    Thanks
     
  5. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    trap

    Unless it was not installed properly in the first place you cannot lower it. but, if it was to an existing shower, it should already be low enough and you just have to shorten the riser pipe.
     
  6. lhoward145

    lhoward145 New Member

    Joined:
    Jan 15, 2008
    Got it. Thanks for your help and time.
     
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