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    aghmaintenance1's Avatar
    aghmaintenance1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 29, 2009, 09:05 AM
    Water closet connection to sanitary lines
    What is the maximum number of water closets that can be connected to a 3" sanitary line
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #2

    Oct 29, 2009, 02:55 PM
    Hi Agh...

    In my area you cannot connect more than 3 toilets or 3 bathroom groups on a 3" building drain.

    Need any more... let me know.

    MARK
    .
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Oct 29, 2009, 04:56 PM
    An d in my area( Standard Plumbing Code) while you can connect 20 fixture units in a 3" branchhowever, it restricts you to two water closets. Regards, tom
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #4

    Oct 29, 2009, 09:52 PM

    In my area, it is similar what Tom posted: We can connect 2 toilets to 3" line, max. . If you are connecting 3rd toilet, you have to upgrade to 4".
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