Hello,
I have problems below to solve: 
 1)For a vertical 2D problem with a free surface, which best the model(Genuchten or linear) to model the unsaturated zone? 
 2) to simulate  infiltration I imposed a 2nd kind of BC condition  but I see that flows are not uniform during the simulation. why?
 3) to calculate total flow entering my model, I must multiply the value given by the budjet analyzer by the depth of my aquifer?
 
Thank you in advance for your answers!