$11\mathrm{.}20$ The tank shown in Fig. $11\mathrm{.}24$ is to be drained to a sewer.

Determine the size of new Schedule $40$ steel pipe that will

carry at least $400ga\frac{l}{m}in$ of water at $80F$ through the

system shown. The total length of pipe is $75$ ft $.$

Also Find sw$,$ E$,$ Kinematic viscosity, K Entrance, Le$/$D Valve, Le$/$D elbow, K exist, hL ideal and D formula.

And need atleast $2$ iterations for these below:

first D$,$ D$/$E$,$ f $,$ fT$,$ q or v$,$ N$,$ L$/$D pipe, hL actual or P$2$