Water flows from a storage tank through a horizontal, 6-inch pipe (cast iron) and discharges water (20oC) into the atmosphere at the end. The pipe is 500 feet long, contains two I-ft-radius bench and a fully open gate valve, and the entrance is square edged. Calculate the flow rate if the depth of water in the storage tank is 60.2 feet above the inlet (and outlet) of the pipe.