Recent content by Duplex

  1. Duplex

    Soil stack as common vent.

    I'm just not sure how to interpret the code on this. Seems 3 inch stack is fine for the dfu totals. It's just the multi storey part that's unclear to me. I'm thinking the positive pressure in front of the WC draining would have more of an effect than negative pressure behind.
  2. Duplex

    Soil stack as common vent.

    That's what I was thinking, yes.
  3. Duplex

    Soil stack as common vent.

    Hi all. I'm new here and have a question. I'm remodeling a duplex. The 3 inch soil stack is straight vertical. It's a two storey. There's a total of 10 dfu on it. From the top down, second floor, lav, then WC. Ground floor lav, kitchen sink on shared trap arm. And last is washer standpipe...
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