Posting it for the third time. The solution that is already given on the chegg is not correct so dontt copy paste or else i will down vote. The answers for this question are: Q$=0\mathrm{.}0128$m$3/$s$,$ hv$=2\mathrm{.}87$m$.$ Donyt copy the other solution with cotrect discharge because velocity os not mentioned on the solution. Thank you!

Problem $7\mathrm{.}14$: The following system is proposed for the municipal requirements of a town $($see Figure $7\mathrm{.}101).$ A constant discharge of $5l\frac{t}{s}$ will be withdrawn from the system at point B to meet the water requirements of a nearby village. Determine the maximum possible discharge that can pass through the system under gravity. What is the headloss at the valve at point D$?$ In the problem, consider $0\mathrm{.}5\frac{m}{s}u2\mathrm{.}3\frac{m}{s}$ and $3m\frac{P}{}80m.$

Answer: $Q=0\mathrm{.}0128\frac{m^3}{s},h_v=2\mathrm{.}87m$

Figure $7\mathrm{.}101$ Transmission line for Problem $7\mathrm{.}14.$