I am having one tank which is getting water from reservoir.
While running EPS for 24 hrs., I am getting an error of the "Tank is Empty" at around 21:00 hrs.
I have placed FCV at the inlet of the tank, with the initial setting of flow equals to the total demand at the D/s node of the tank.
Also, the initial level in the tank gives that the tank is 30 % full at the start of the simulation.
The Velocity in the inlet pipe is around .98 m/s, HLG is below 5 m/km, and the Required HGL is available at the tank throughout 24 hrs.
What shall I do if the tank is showing empty ?