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Thread: 2" shower p-trap with our without union?

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  1. #1
    DIY Junior Member Curtis Myers's Avatar
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    Default 2" shower p-trap with our without union?

    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. #2
    Test, Don't Guess! cacher_chick's Avatar
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    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 by cacher_chick; 12-30-2012 at 09:45 AM.

  3. #3
    Forum Admin, Expert Plumber Terry's Avatar
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    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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