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  1. #1
    Join Date
    Apr 2011
    Posts
    7

    Default running new drain

    what is the proper way to run a 2" drain perpendicular to floor joists?
    can i laminate 3/4" plywood to joists then drill 2 1/2" holes in joists?

  2. #2
    Join Date
    Sep 2009
    Location
    florida
    Posts
    598

    Default Re: running new drain

    Quote Originally Posted by rephil34 View Post
    what is the proper way to run a 2" drain perpendicular to floor joists?
    can i laminate 3/4" plywood to joists then drill 2 1/2" holes in joists?
    You could do it that way,make sure you pitch the pipe.

    You could use these also.

    http://www.google.com/products/catal...d=0CFYQ8gIwAA#
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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  3. #3
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,505

    Default Re: running new drain

    What kind and size of joists do you have?
    To drill out 2.5" requires a certain joist size. Make sure you know the code.

  4. #4
    Join Date
    Sep 2011
    Location
    Michigan
    Posts
    7

    Default Re: running new drain

    Pitch is 1/8" per foot. Less and solids settle out. More and your pipe will scour out the bottom eventually.

  5. #5
    Join Date
    Jul 2009
    Location
    Northeast
    Posts
    661

    Default Re: running new drain

    I believe pitch is 1/4 per foot in MA., don't know about any other State.

  6. #6
    Join Date
    Sep 2009
    Location
    florida
    Posts
    598

    Default Re: running new drain

    [QUOTE=Sten;251812]I believe pitch is 1/4 per foot in MA., don't know about any other State.[/QUOTE

    I think 1/4" per foot is standard in a Hand Dug Out House also.
    Gizmo

    Cut it 3 times & it's still to short.
    Inventor of the Miter Master Plus.

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  7. #7
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,505

    Default Re: running new drain

    Slope required in CA is 1/4" per foot as well.

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