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  1. hexhead123

    sizing roof drain dry well

    Thanks everyone for your help. Since spare time is a rare commodity, I decided to take the easy route and hired the local civil engineer. I paid him to give me a quick refresher course, which worked out nicely. Just incase your wondering... I was pleased to learn that the "I" value in the...
  2. hexhead123

    sizing roof drain dry well

    Thank you for your feedback. I am familiar with hydrologic methods, but it has been 12 years since I was taught so my familiarity is a distant memory. I've been reviewing my notes and textbooks but my results left me doubtful. I am hoping that I don't need to provide capacity for 4" of water...
  3. hexhead123

    sizing roof drain dry well

    I am located in Northeast PA, USA and also am in need of a refresher course on sizing dry wells for a commercial project. The local code enforcer told me the expected runoff from a ten year storm event at our facility is approximately 4 inches of rain in a 24 hour period. And was told to use...
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