4. Water is pumped between two reservoirs at 0.2 ft3/s through 400 ft of 2 in diameter pipe and several minor losses, as shown in the figure below. The roughness ratio e/D = 0.001. Determine the pump horsepower required, assuming the pump efficiency is 70%. Θ =20A E6.16 Sharp entrance Screwed regular Sharp -120 ft exit 90° elbow Half-open gate valve 12-in bend radius Pump Open globe valve 400 ft of pipe. Am Use the following values for the loss coefficients for the fittings and bends: Fitting Sharp entrance Open globe valve K 0.5 6.9 12 in bend 0.25 Screwed regular 90° elbow 0.95 ½ closed gate valve 2.7 Sharp exit 1.0