Kitchen Sink into cast vent stack.

Discussion in 'Plumbing Forum' started by GFH, Jun 29, 2012.

  1. Jun 29, 2012 #1

    GFH

    GFH

    GFH

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    HI

    Doing a Reno on a kitchen and it has 3" cast vent pipe/drain pipe and I need to tap into the existing kitchen drain point with ABS.

    Before I go and put the pipe wrench to this puppy, anybody tell me whether it will unscrew or?

    2012-06-28 10.40.14.jpg
     
  2. Jun 29, 2012 #2

    kok328

    kok328

    kok328

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    Looks like a union. Your going to need some heat or penetrant on that to get it to budge. Start by soaking the connection with PB-Blaster. If that doesn't do the trick, hit with MAPP gas and then try to unscrew it.
     
  3. Jun 29, 2012 #3

    GFH

    GFH

    GFH

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    Thanks kok328

    I take it that it is the 1 1/2 copper that will unscrew from the cast?
     
  4. Jul 2, 2012 #4

    CallMeVilla

    CallMeVilla

    CallMeVilla

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    Maybe I a missing something but why not just use a no-hub connector with an ABS stub to transition? That will allow you to keep the existing undisturbed and make for a fast fix.

    Am I missing something here?
     

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