Water flows under gravity between two large open reservoirs via an asphalted cast iron pipe of length $3065$ metres.

The pipe has a diameter of $350$ mm $.$ The pipe connections at the reservoirs are flush, and the pipeline includes a gate valve fully open and two $(2)$ short radius elbows.

Determine the discharge when the difference in water levels between the reservoirs is $9$ metres.

Clearly annotate$/$indicate your selection$($s$)$ of $\backslash ($ f $\backslash )$ on the Moody diagram provided on the Studydesk.