Horizontal Kitchen Drain

Discussion in 'UPC Plumbing Code Questions' started by Kaptainkw, Jun 5, 2020.

  1. Kaptainkw

    Kaptainkw New Member

    Joined:
    May 19, 2020
    Location:
    Alexandria, VA
    Good day, I appreciate this forum!

    I'm relocating a Kitchen sink under a window with an existing slab. Horizontal 2" pipe, 2" combo and a 2" long sweep cleanout ahead of it. Vertical vent within the required distance (3'6" UPC or 6' IRC) maintaining 1/4"/ft slope.

    My question is: Can this entire branch be run horizontal (vs. vertical and then long sweep horizontal) and then within a few feet of the main stack 45s into it? I need to clear an electrical panel and thus there would be a section of pipe at 45 degrees.

    Thank you!
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    I see no reason not. You could even use a santee into the main stack, but your idea of 45s down into the stack are a little better.

    You could go farther before the vent if you want... UPC allows up to 5 ft on 2 inch before the vent. The 3.5 max on UPC is for 1.5 inch.

    Virginia uses IPC, not UPC, and IPC allows even longer distances-- 6 ft for 1.5 and 8 ft for 2 inch.
     
    Last edited: Jun 5, 2020
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  4. Kaptainkw

    Kaptainkw New Member

    Joined:
    May 19, 2020
    Location:
    Alexandria, VA
    Reach4: Thank you very much for the confirmation and the reminder that VA is IPC. Much appreciated!
     
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