P-trap with union vs glued-up in crawlspace for shower

Discussion in 'Shower & Bathtub Forum & Blog' started by Rocknroj, Jan 26, 2019.

  1. Rocknroj

    Rocknroj Member

    Joined:
    Dec 30, 2008
    Location:
    Washington
    Greetings.

    I am replacing an old p-trap for a shower.. Access is in a crawl space, about 20 feet from the opening. Should I use a fully glued trap or one with a union.

    Any code requirements that dictate which to choose?

    Pros and cons?

    Thanks in advance
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    We always use a solvent weld "glued" p-trap on tubs and showers.
    I do use tubular traps with unions on kitchens and lavs.
     
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  4. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    I think a plumber will get things right the first time, which is needed with glue. A novice might tend toward the slip connections because it is more forgiving to the less skilled. I am one of the less-skilled.
     
  5. Dave R

    Dave R New Member

    Joined:
    Feb 6, 2021
    Location:
    Victoria BC
    Would a trap with a union for a lav be good enough as a cleanout?
     
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