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  1. #1
    Join Date
    Jan 2009
    Posts
    1

    Default galvanized to copper or PEX and ABS

    i have an older home with galvanized plumbing and want to remodel the bathroom. how do i connect the old galvanized pipe to copper or PEX for the supply and ABS for the drain? any special tools?

  2. #2
    Join Date
    Dec 2008
    Location
    Midwest
    Posts
    159

    Default Re: galvanized to copper or PEX and ABS

    Transitioning from galvanized to copper or pex you will need
    male or female x pex or sweat adapter. Or you can get a male adapter x shark bite. If you switch to Pex just make sure you use the stiffener in the Pex tubing. These are very easily found at any hardware store. The ABS you can just use an approved glue to change to PVC. Just make sure the product directions say it can be used on both types of pipe.

  3. #3
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,622

    Default Re: galvanized to copper or PEX and ABS

    For PEX you will need PEX tools and the right NPT adapter(proper size).
    For copper you will need a torch, solder, a pipe cutter, and the right NPT adapters(proper size).
    For the ABS you will need an NPT adapter (proper size) and the tools and mastic for the ABS.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  4. #4
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: galvanized to copper or PEX and ABS

    Quote Originally Posted by mkss View Post
    i have an older home with galvanized plumbing and want to remodel the bathroom. how do i connect the old galvanized pipe to copper or PEX for the supply and ABS for the drain? any special tools?
    Also .... if you are joining the ABS to cast iron use the Fernco or similar couplers.
    For the galvy drains with threaded fittings there are ABS threaded adapters available.
    "" an ounce of perception -- a pound of obscure "
    - Rush

  5. #5
    Join Date
    Jan 2009
    Posts
    6

    Default Re: galvanized to copper or PEX and ABS

    To connect galvanized pipe to copper you need to use a dielectric coupler. If you don't then you'll have two different metals in contact with each which will create a small electrical current, otherwise known as galvanic action. That will then lead to a weak spot in your pipe and eventually a leak or burst.

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