Question: A 1 0 - inch - diameter water main 7 0 0 feet long needs to be disinfected. An initial chlorine dose of 4 0

A 10-inch-diameter water main 700 feet long needs to be disinfected. An initial chlorine dose of 400 milligrams per liter (mg/L) is expected to maintain a chlorine residual of over 300 mg/L during the 3-hour disinfection period. How many gallons of 5.25-percent sodium hypochlorite solution are needed?

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