I was needing a little help validating the methodology for fire flow requirements in my city. They do not allow you to verify fire flow per a fire hydrant flow test.
Our city always uses hydraulic calculations (a hydraulic model) to determine acceptable flow in an area. However, in their hydraulic model they always assume that the water usage that day is 19,000,000 million gallons which was established by taking the highest usage in the history of our community of all time, which occurred in 2012 when we had 30 plus days of 100 degree weather of 18M gallons and adding a 1 Million to that. Our average daily usage in our community is around 10 to 11 million gallons per day.
Anyway, the local engineers say that methodology is consistent with the International Fire code. What are your thoughts? I would love to understand what the IFC requires.
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