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  1. #1
    Join Date
    Oct 2009

    Default What is this coupler in my waste line (Pics)?

    Here are two photos of the bathroom waste line. I'm not sure what this huge coupler is. I think that it might be an old dielectric union because the waste line is copper below the union and appears to be galvenized as it rises up. I could be wrong, though.

    This is a second floor bathroom on the second story of the house. I haven't removed enough of the wall to know where the waste line terminates higher up.

    Pictures below:

    Thanks a bunch.

  2. #2
    Join Date
    Jan 2009

    Default Re: What is this coupler in my waste line (Pics)?

    It's just an old fitting they used to go from copper to cast with a lead joint. It can be switched to pvc. Copper worked better for drains and cast or galvanized was cheaper for vents not receiving water.

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