New vanity install - P trap issue

Discussion in 'Remodel Forum & Blog' started by bones2116, Mar 15, 2012.

  1. bones2116

    bones2116 New Member

    Messages:
    2
    Location:
    Nova Scotia
    So I decided to redo our bathroom by replace the old vanity with a newer one. Everything went great until I went to put the new vanity in and the current P trap is to low and now I cant get the vanity in place. My question is that the current p trap goes into the wall the runs horizontally behind it to what I think is the main drain. Can I raise the p trap and where it enters the wall and then have it drop down to where it use to be? Any help would be great as I never done plumbing before.

    Jason
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,263
    Location:
    Cave Creek, Arizona
    NO!, You CANNOT do that. You either have to cut the cabinet so the trap will "hang" into it, or raise the entire pipe in the wall.
  3. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,281
    Location:
    Land of Cheese
    In the wall there should also be a vent. You cannot have more than 1/4" of drop (pitch) per foot of pipe between the trap and it's vent.

    If you install so that there is too much pitch between the trap and vent, the trap can be siphoned by the flow of water through the pipe. This will allow sewer gas, drain flies, etc., to come into the house through the drain.
  4. bones2116

    bones2116 New Member

    Messages:
    2
    Location:
    Nova Scotia
    Didn't think so

    Thanks everyone! I didn't think I could since it seemed way to easy of a fix.
Similar Threads: vanity install
Forum Title Date
Remodel Forum & Blog Bathroon Vanity Install Issue - This was supposed to be the simple part! Oct 8, 2013
Remodel Forum & Blog Bathrom Vanity, Medicine Cabinet, Sconce Install Questions Sep 28, 2013
Remodel Forum & Blog Vanity Install Question Oct 13, 2008
Remodel Forum & Blog Vanity install Sep 11, 2008
Remodel Forum & Blog Single to double sink vanity - two P Traps with two AAV? Nov 24, 2014

Share This Page