4.42 A pump draws water from a reservoir through a 150-mmdiameter suction pipe and delivers it to a 75-mm-diameter discharge pipe. The end of the suction pipe is 2 m below the free surface of the reservoir. The pressure gage on the discharge pipe, which is 2 m above the reservoir surface, reads 170 kPa. The average speed in the discharge pipe is 3 m s. If the pump efficiency is 75 percent, determine the power required to drive it.