2" shower p-trap with our without union?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Curtis Myers, Dec 30, 2012.

  1. Curtis Myers

    Curtis Myers New Member

    Messages:
    4
    Location:
    Saskatchewan
    I'm installing a shower on my main floor and am wondering if I should use a p-trap with our without a union. The trap is accessible from below from the basement. From what I've read, it's not recommended to use the one with union. Thanks for your help.
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,259
    Location:
    Land of Cheese
    A 2" trap is easy to snake through, so I can't think of many reasons I would ever want to take it apart and put it back together. It would be another place to leak though.

    If it is a long run across the basement, you might consider adding a wye in the line for a cleanout.
    Last edited: Dec 30, 2012
  3. Terry

    Terry Administrator Staff Member

    Messages:
    15,280
    Location:
    Bothell, Washington
    If you are looking for one more problem, then go for the union.
    Most codes want solvent fittings that are hidden because unions are always a problem later on.
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