shower drain & p trap code question

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by nc8861, Jul 19, 2008.

  1. nc8861

    nc8861 New Member

    Messages:
    36
    Location:
    North Carolina
    Watching some TLC tonight on some home improvement show and this guy says that according to code, compression fittings on a shower p trap can't be used in an area where you can't get to - the example on the show was a second floor bathroom between floor joists. Is this true? Does everything have to be glue joints?

    I'm in a 30 yr old house, 2nd floor bathroom - only access from 1st floor would be through the kitchen ceiling.
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Compression fittings on tub drains have been around since long before glues pipe. I have heard that some local codes don't allow them, but in general I think you can still use them.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,242
    Location:
    Cave Creek, Arizona
    joints

    Usually the prohibition is about what kind of compression joints you use.
  4. nc8861

    nc8861 New Member

    Messages:
    36
    Location:
    North Carolina
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,242
    Location:
    Cave Creek, Arizona
    trap

    The compression part is the inlet. The large nut is a ground joint. But regardless, I would NEVER use that trap in a concealed location. I have seen too many of them with snapped locknuts at the ground joint.
  6. nc8861

    nc8861 New Member

    Messages:
    36
    Location:
    North Carolina
    That's enough evidence for me - I'll take it back. Thanks for your help.
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