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  1. #1
    DIY Senior Member dlarrivee's Avatar
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    Default Best Transition

    I'm replacing a sewage ejector pump and installing a "Zoeller Tri-check" at the same time.

    The tri-check is a union check valve and ball valve in one unit, and is made of PVC.

    The pump is cast iron, the main line I'm tying into is 3" ABS.

    PVC for DWV is very uncommon here, but I'm required to have the ball-valve etc. due to local code.

    The ejector is right below the 3" abs line, so I will be dumping into the top of the line w/ a wye and 1/8th bend.

    There are female threads on the pump, and 2 sockets, one on either end of the tri-check.

    Where would the best place to transition from PVC to ABS be? I'm not planning on using transition glue, I was thinking female PVC adapter to male ABS adapter right after the ball valve before the 1/8th bend and wye...

    Is this threaded connection trustworthy?
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    Last edited by Terry; 10-29-2012 at 09:28 PM.

  2. #2
    DIY Senior Member kreemoweet's Avatar
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    Why not a shielded neoprene coupling? Much handier when (not if) the time comes to dissassemble/reassemble
    the works.

  3. #3
    DIY Senior Member dlarrivee's Avatar
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    Default

    I have a Proflex 3000-22, I wasn't sure if these were meant for discharge on pumps though?

  4. #4
    Forum Admin, Expert Plumber Terry's Avatar
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    The best place to transition from PVC to ABS is with a shielded coupling. That's a plus 1

  5. #5
    DIY Senior Member dlarrivee's Avatar
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    Great thanks guys, I've got the coupling already but was second guessing and thought I would check in here.

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