Lenar

Hi , I am trying to create a recirculation model, what I mean is that: I created 3-D unsaturated model with rainfall and evaporation applied at the top and free drainage boundary at the bottom, my question is whether there is a way to use the discharge from the bottom from the last time step and apply it to the top at the next time step, can this be done by using "in/outflow on top from bottom" editor ot source /sink editor???
Thanks in advance