1. worker

    worker New Member

    Feb 4, 2007
    Is there anybody from Chicago that can tell me if it's ok to run 4" pvc underground for a bathroom? :mad:
  2. Randyj

    Randyj Master Plumber

    Nov 25, 2006
    Residential, commercial, inside, outside, under slab, crawl space? Not from that neck of the woods but around here anything goes when it's run to a septic tank. On sewers ductile iron is required from the building to the public sewer line. Local codes vary.
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  4. kordts

    kordts In the Trades

    Oct 15, 2005
    industrial service plumbing foreman
    exurban Chicago
    In Chicago you can use pvc for dwv in residential applications for 3 stories and under. That's aboveground. As far as underground goes, I don't know, but would guess the answer is no. Be aware, if this is permitted job, the inspector will tell you the answer. If you don't pull a permit and get caught, you are in big trouble. Unless you are an off duty fireman.
    Last edited: Feb 4, 2007
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