Bathroom sink p trap or t trap

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by ksdad, Apr 18, 2007.

  1. ksdad

    ksdad New Member

    Joined:
    Apr 18, 2007
    Is there any disadvantage to using a t trap instead of a p trap under a bathroom sink?
     
  2. geniescience

    geniescience Homeowner

    Joined:
    Nov 27, 2005
    Occupation:
    ditto
    Location:
    humid summers hot, humid winters cold
    smells fishy

    since the web site information never once mentions whether this "patented" thing can hold a seal against sewer gases, my first reaction is to bet 100:1 that it can't and that it isn't approved anywhere in the world to replace a P trap.

    i am willing to learn all about it. Tell us what you know. :)

    david
     
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  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    If it is what I think it is, it is an adaptation of a drum trap. They tend to clog up with deposits, hair, soak scum, etc. much more often than a standard p-trap. Do you have a link to a picture or description? My guess is that it is not accepted by US plumbing codes. I've seen them in Europe, but never took one apart to see exactly how it worked. Just wanted to verify we're talking the same thing.
     
  5. hj

    hj Moderator & Master Plumber Staff Member

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

    A "T" trap is a bottle trap which uses an internal baffle to create the trap. They are illegal under all codes, even though the specialty stores sell them for their designer sinks.
     
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