A pump with an NPSH $=20$ ft is used to pump water from a reservoir at the rate of $4$ cfs$.$ The pump head is $40$ ft and the water temperature is $60\backslash$deg F$.$ The suction line has a rounded entrance with a loss coefficient of $0\mathrm{.}06.$ It contains a check valve with a loss coefficient of $2\mathrm{.}5$ and a long$-$radius $90$ deg elbow. Further, it has a diameter of $10$ in and a length of $30$ ft$.$ Assume that the pipe has an absolute roughness of $0\mathrm{.}0001$ ft$,$ determine the maximum elevation relative to the reservoir surface at which the pump can be located. Please explain all your steps without copying from the previous chegg. answers.