transitioning from galvanized to copper

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by jm66208, Dec 16, 2013.

  1. jm66208

    jm66208 Member

    Messages:
    99
    Location:
    KC
    Gonna tear out some old galvanized and replace with copper. Cant replace it all so I 'm gonna have a 3/4"galvanized to 3/4" copper transition. Figured I'd use a 3/4" brass threaded coupler off the galvanized pipe, then a 6" brass nipple, then a copper FIP to sweat fitting and continue on with my rigid copper. Lotta connections there, but is there a better way? The existing plumbing has some dielectric unions where others have transitioned to copper but they show signs of corrosion.
  2. Smooky

    Smooky Member

    Messages:
    652
    Location:
    NC
  3. Terry

    Terry Administrator Staff Member

    Messages:
    15,416
    Location:
    Bothell, Washington
    I would not bother installing dilectric unions. They close off very quickly.
    Junk.
    I've been using 6" brass nipples for transistion.
    It's also one reason I don't like leaving any galvanized in a building once I've started replacing with copper. Any time you transistion, it's a probem.
  4. jm66208

    jm66208 Member

    Messages:
    99
    Location:
    KC
    Thanks Terry, Unfortunately I don't have the option of removing all the galvanized in this situation.
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