A pipeline is proposed to carry 90 deg F water to the top of a spray cooling pond. Flow through the smooth pipe which has an outside diameter of 36 in and a wall thickness of 3/8 in, is to be 26,000 gpm. The friction factor for the pipe is 0.01. For the proposed system the pressure at the pump inlet is 20 psig, and the equivalent length of the pipe from the pump outlet to the pipe exit is 2425 ft. The pond is 160 ft above the pump. For the conditions given, the operating head of the pump (ft) is most nearly: