P-Trap elbow connected directly to waste drain

Discussion in 'Plumbing Code Questions' started by greg_xyz_nj, Mar 25, 2021.

  1. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    I am replacing the double bin kitchen sink with a single bin and will have to re-plumb the drain.
    The prior owner connected the down elbow of the P-Trap directly to the waste line.
    Should I cut this elbow off and put in a stub out adapter or is it ok the way it is and i should just find a new P-trap to use?
    (I am in New Jersey)
    Thanks
     

    Attached Files:

  2. breplum

    breplum Member

    Joined:
    Oct 2, 2004
    Occupation:
    Plumbing and heating contractor
    Location:
    San Francisco Bay Area
    To give yourself the most flexible options, cut right at the hub (assuming you have 1" of pipe exposed available to couple to:
    Use a "no hub" coupling adapter, Tubular 1-1/2" x pipe size 1-1/2"
     
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  4. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    It's likely that you will need to cut off the existing p-trap and start over. I normally use tubular fittings for a sink drain. Some use the glued up fittings.
    I like being able to take things apart later, so I go with tubular and slip joint nuts. White PVC is fine for that. The stuff seems to last decades.
     
  5. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    Thanks.
    I have 1 - 3/4 inches from the back of the cabinet to the edge of the elbow
     
  6. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    So, i'll cut the elbow off and put on a pvc threaded sink drain adapter with a slip joint nut and washer. i can glue that onto the stub out pipe and then build the rest of the drain with tubular fittings and slip joint nuts. I like being able to easily take things apart myself. I think that sounds like the right thing to do.
     
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  7. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    The thing you want is called a pvc hub trap adapter.
     
  8. greg_xyz_nj

    greg_xyz_nj New Member

    Joined:
    Mar 3, 2018
    Location:
    Morris County, NJ
    Thank you for the info.
    So this is what i need, correct?
     

    Attached Files:

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  9. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    That's it.
     
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