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    rodlee's Avatar
    rodlee Posts: 4, Reputation: 1
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    #1

    Mar 27, 2009, 06:19 PM
    Dielectric unions
    About how long will a dielectric union last before the brass and copper eat each other up and leak?
    afaroo's Avatar
    afaroo Posts: 4,006, Reputation: 251
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    #2

    Mar 27, 2009, 07:37 PM

    Dielectric union will last for ever have not heard any one leaking, Thanks.

    John

    Installing A Dielectric Union To Join Galvanized And Copper Pipes - Plumbing System Components
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Mar 28, 2009, 12:37 PM

    I agree with John, the brass and copper do not touch and are separated by a plastic collar. I have never had one fail, yet. Are you tansitioning from galvanized to copper or what?
    rodlee's Avatar
    rodlee Posts: 4, Reputation: 1
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    #4

    Mar 28, 2009, 01:22 PM
    Yes it galvanized to copper on a hot water heater
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