[calaba]

I have a doubt regarding what contour conditions to use for the simulation of a water tank.

The simulation runs with the incompressible solver pisoFoam.
The tank only counts with the same conduction for the inlet and outlet. In the first instance I try to do a simulation where only the input flow to the deposit is contemplated. This is where I have doubts about which boundary conditions to use.
I attach the files of the boundary conditions that I have used.
Using these boundary conditions I get the following error:

Total flux : 0.478888
Specified mass inflow : 0.3969
Specified mass outflow : 0
Adjustable mass outflow : 6.7343e-104

Can anybody help me?
Thanks in advance.
regards