(Solved): Estimate the elevation required in the upper reservoir to produce a water discharge of 70l/s in the ...

Estimate the elevation required in the upper reservoir to produce a water discharge of $70\mathrm{l}/\mathrm{s}$ in the system. What is the pressure at $A$ ? Draw total energy head line and piezometric energy head line for the pipe system given. Roughness of pipe $e=0.075\mathrm{mm}$, Kinematic viscosity of water $v=1\times 10^{?6}{\mathrm{m}}^{\underline{2}}/\mathrm{s},K_L$ values short radius $45^{?}$ bend 0.4 , half open gate valve 5.7