Question $2$: Pipe Network Analyses $(20$ points$)$

A pipe network and data are provided below.

a$)$ Determine the flow in pipes CE and DE$,$ and the pressure head HE$.$ Also determine the

pressure $($in psi$)$ at $E$ if the ground elevation is $650ft.$

$H_E=$

b$)$ If the Reservoir A in Part $($a$)$ is fed directly from the wastewater treatment plant $($water

age $0$ days$),$ what is the water age at Point $C($hint: water travel time from $A$ to E$)?$

c$)$ In solving a pipe network problem in general, one condition which must be satisfied is

mass balance at each junction $(Q=0).$ What other condition must be satisfied for the

pipe network solution?