Storm drain piping

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    • #279513

      I need roof drain pipe sizing charts for sizes greater than 15 in.

    • #301070
      Retired plbg1

      All I could find is that you have to fig. by the rain fall in your area, its in the UPC & Ipc code book. Multiplying thelisted GPM / Sq. the roof area being drained by each inlet ( In sq. ft.) produces the the gal. per min. of required for sizing each inlet. I would contact a Plbg. Eng. if it is inportant, let me know.

      Art retired plbg

    • #301071
      Retired plbg1

      Go to they have charts for storm water drainage. let me know.

      Art retired plbg

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