using EPANET

Determine flow rates in the branching system in the figure below, given the following water surface $($WS$)$ elevation and pipe data $($length and diameter$)$:

$WS1=2,205mL1=5,000mD1=1\mathrm{.}2m$

$WS2=2,190mL2=3,500mD2=0\mathrm{.}6m$

$WS3=2,075mL3=4,500mD3=1\mathrm{.}3m$

All of the pipes are galvanized iron and the temperature of the water is $20=C.$ Also determine the pressure head $(\frac{P}{})$ at the junction $($height from $J$ to $P)$ if the elevation of the junction $J$ is $2,180$ m $.($Recall that the velocity head at the junction was assumed to be negligible in branching pipe$).$