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    fortnelson's Avatar
    fortnelson Posts: 1, Reputation: 1
    New Member
     
    #1

    Mar 3, 2011, 09:59 PM
    Cast iron sewer line to 3"abs
    Im helping a buddy tie his drainage to the sewer line but when I got under his trailer I found a fitting that I have never seen before it is 4" pipe and then on the end of it has a 7" OD fitting with some sort of rubber lining... any ideas
    massplumber2008's Avatar
    massplumber2008 Posts: 12,832, Reputation: 1212
    Senior Plumbing Expert
     
    #2

    Mar 4, 2011, 06:38 AM

    Not really... trailer parks can come up with all kinds of ways to connect to existing drainage pipes.

    I would ignore that transition fitting and then cut a new WYE fitting into the trailer's drain line. You can use SHIELDED MISSION STYLE CLAMPS (see image) to cut in and reconnect all the piping/wye fitting.

    More questions? Just let us know, OK?

    Mark
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