Mis-Reading the Code

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Bassman, Jul 24, 2010.

  1. Bassman

    Bassman DIY Member

    Joined:
    Aug 25, 2006
    Occupation:
    musician
    Location:
    Ventura, CA
    I'm looking at the CA Plumbing code and it says:

    706.1
    "Changes in direction of drainage piping shall be made by appropriate use of approved fittings and shall be of the angles presented by a one-sixteenth (1/16) bend, one-eighth (1/8) bend, or one-sixth (1/6) bend, or other approved fittings of equivalent sweep."

    I can't figure out why a right angle is not included in this list. Are there no 90 degree bends in drain pipes? Thanks for any help.

    Neil
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    You would combine two 1/8" bends.

    A long sweep 90 is equivalent, the same as an 1/8 bend and street 1/8 bend put together.
     
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    Of course there are, but the actual application determines WHICH 90 can be used.
     
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