Building drain passing through exterior

Discussion in 'IPC Plumbing Code Questions' started by ransonjd, Mar 14, 2017.

  1. ransonjd

    ransonjd New Member

    Jan 22, 2017
    New York
    My house is going to be built on a U-shaped monolithic-slab-on-grade that wraps around a courtyard. The house will be on a septic. I'm planning out the plumbing for permitting and quoting.

    The shortest route for the building drain would pass through the courtyard. I've attached an image that shows the building drain routing. The top pipe goes to the septic. (I haven't added the fixtures on the right half of the house yet.

    Are there any code issues with having the building drain exit and re-enter the structure, assuming it's adequately deep to prevent freezing?

    Attached Files:

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