When calculating through the fire main supply line to the city water main in the street. Is it necessary to calculate back to the test hydrant if the city water main is a circulating main? Or, does NFPA allow calculating to the point where the fire line connects to the city water main?
TAYLOR SCHUMACHER, CET Security Fire Sprinkler P 320.656.0847 | F 320.656.0312 | E [email protected]
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