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  1. BenjaminCoop

    DWV vacuum test

    Well this morning I finally got through to the inspector to ask a couple final questions for my rough-in inspection. He surprised me by saying they no longer allow the 5 PSI pressure test for DWV. Now it's 10ft head of water, or -2 PSI vacuum test. The water test would be extremely...
  2. BenjaminCoop

    90 degree long sweep permitted?

    This is a follow-up post to a recent thread, now with a mock-up to better illustrate my question. This shows a 2" shower drain and trap running through a 90 degree bend to catch a vent, then connecting to the 3" WC line as a wet vent for the WC. My question hinges on the following language in...
  3. BenjaminCoop

    Basement bathroom venting puzzle

    Hi all, I'm putting a bathroom in my basement and am currently working on the plans to submit to the city. With my layout, I am planning to use an AAV behind (in the wet wall of) the shower, in a 12" wide space that will likely double as a narrow storage cabinet. This will vent the shower...
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