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    roger561's Avatar
    roger561 Posts: 2, Reputation: 1
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    #1

    Feb 11, 2019, 10:09 AM
    What is the maximum distance of a 2" arm
    What is the maximum distance of a 2" arm
    roger561's Avatar
    roger561 Posts: 2, Reputation: 1
    New Member
    		  
    #2

    Feb 11, 2019, 10:13 AM
    What the maximum distance of a 3" arm
    What is the distance of a 3"arm

    what is the maximum distance of a 3"arm
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
    		  
    #3

    Feb 11, 2019, 03:14 PM
    Roger is asking about the TRAP ARM distance from Ptrap to vent maximums.

    Roger, the answer is really dependent on which plumbing code your state follows.

    In my State, Massachusetts, the maximum distance for a 2" trap to vent is 6 feet, and a maximum for 3" is 8 feet.

    In other states, 2" max. distance from trap to vent is 8 feet and 3" maximum is 10 feet.

    Check your local plumbing code online under venting requirements... should be easy to find using Google!

    Mark
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