4.43 Water from a river is to be pumped to an irrigation ditch as shown in Figure P4.43. The water temperature is 55F. The irrigation requirement is 400 gpm. The elevation difference between the river and the surface of the water in the irrigation ditch is 30 ft. A hinged-disc foot valve with a strainer serves two functions: (1) it filters the water entering the suction pipe and. (2) it acts like a check valve when the pump is shut down. The pipeline contains 85 ft of 5-nom sch 40 commercial steel pipe. Model the foot valve as a swing check valve. a. Plot the system curve up to 600 gpm. b. Select a Series e-80 Bell & Gossett inline pump for this system. e. What is the operating point of the pump/pipe system based on the pump you selected in (b)? Specify the capacity (gpm), head (ft), brake horsepower input to the pump (hp). and efficiency of the pump. z-0ft Hinged-disc foot valve with strainer L-85 ft 5-nom sch 40 Commercial steel River B&G Series 80SC Inline pump Irrigation ditch Z-30 ft