Galv to copper

Discussion in 'Plumbing Forum' started by asbestos, May 4, 2012.

  1. May 4, 2012 #1

    asbestos

    asbestos

    asbestos

    Good with caulk

    Joined:
    Feb 18, 2006
    Messages:
    244
    Likes Received:
    3
    I need to attach an expansion tank to a water heater. How bad is it if I don't use dielectric fittings to go from the copper to the Galvanized? Yes I know you are not supposed to do it but will it rust out before the water heater?
     
  2. May 4, 2012 #2

    kok328

    kok328

    kok328

    Well-Known Member

    Joined:
    Nov 20, 2007
    Messages:
    2,758
    Likes Received:
    249
    Most likely won't have a problem. I've seem many installations without the dielectric fitting. Typically the water heater will need to be replaced before the connection. However, the fittings don't add that much to the cost or complexity of the installation.
     
  3. May 6, 2012 #3

    itiswhatitis1

    itiswhatitis1

    itiswhatitis1

    Active Member

    Joined:
    Jan 28, 2012
    Messages:
    43
    Likes Received:
    2
    If you no that you are supposed to do it then why not do it. It will rust before the water heater will. The expansion will not work wright. The you will be doing it then.
     

Share This Page