Flow only analysis - Total flow through system???

Hi all;

I am currently in the middle of a research project for university, and am using PLAXIS's flow only analysis for FEA analysis of seepage scenarios.

I can output the groundwater flow and see individual arrows denoting these values in [m/day], but how can I determine the total flow through the 2D system [m3/day/m] in a similar way that a flow net determines total flow (using q=kH Nf/Nd)??

Any help would be appreciated, thanks in advance.

PS I tried summing the |q| values in the groundwater flow table output however I am not sure if this is the correct approach?