$1\mathrm{.}3$ The system in Fig. $1\mathrm{.}3$ consists of $1300m$ of $55mm$ cast$-$iron pipe, two $45$ and four $90$ flanged long$-$radius elbows, a fully open flanged globe valve, and a sharp exit into a reservoir. If the elevation at point $1$ is $400m,$ determine the water head needed to be generated by the pump P in order to deliver $0\mathrm{.}006\frac{m^3}{s}$ of water from Reservoir A to Reservoir B$.$ Temperature of water was $20C.$