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  1. #1
    Join Date
    Mar 2010

    Default converting 3.5" cast iron pipe

    I need tom move the vent pipe from our master bath toilet. It is plumbed with 3.5" (ID) cast iron pipe held together with rubber couplings. Can I connect this old pipe to new, PVC pipe?

  2. #2
    Join Date
    Aug 2007
    The Great White North

    Default Re: converting 3.5" cast iron pipe

    Yep --- you'll use those similar rubber fittings ( Fernco fittings is one brand ) for connecting the cast iron pipe to PVC.
    "" an ounce of perception -- a pound of obscure "
    - Rush

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