Water is pumped from an open tank to a pressure vessel at 45 psig as shown. The difference in liquid levels between the two tanks is 50 ft. The flow rate is 20,000 lbm/hr in a 3-inch Schedule 40 steel...

Water is pumped from an open tank to a pressure vessel at 45 psig as shown. The difference in liquid levels between the two tanks is 50 ft. The flow rate is 20,000 lbm/hr in a 3-inch Schedule 40 steel pipe. The total length of pipe is 300 ft. What is the horsepower required if the pump has an efficiency of 50%?