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

    Sep 15, 2008, 05:32 AM
    Dielectric Unions
    Do standard plumbing codes require dielectric unions on drain pipes?
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
     
    #2

    Sep 15, 2008, 05:49 AM
    Quote Originally Posted by Hawkeyekidx
    Do standard plumbing codes require dielectric unions on drain pipes?
    No! But this brings up the question of why you asked. What are the material of the pipes that you question? Regards, Tom
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #3

    Sep 15, 2008, 11:05 AM
    Those unions are commonly found on water heaters if you mix galvanized with copper. Tell Tom what you are working on and the mystery will be solved.

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