In a detergent making process, 1400 gal/hr of water flows through a 2-inch pipe system as follows:

Exit from pump, 2 ft vertical, open gate valve, 14 ft vertical, 90° bend, 12 ft horizontal, ¼ open globe valve, 20 ft horizontal, 90° bend, 6 ft horizontal, 90° bend, 12 ft vertical, 90° bend, 14 ft horizontal, 90° bend, 4 ft vertical, 90° bend, 28 ft horizontal, open gate valve, 3 ft horizontal, entry to tank containing 30 ft of liquid. 

(a) If the pump and tank are both at grade level, estimate the head that the pump must deliver. 

(b) If the pump inlet pressure is 25 psig, what is the outlet pressure? 

(c) Estimate the pump shaft work. 

(d) If the pump is powered by an electric motor with 85% efficiency, what is the annual electricity consumption?