Not trying to hijack any thread. Was hoping we all can be helped out as a group since we have the same problem.
I hope this makes sense.
It will help us who are trying to help by keeping your pictures, and OP's pictures, separate - because while the solution may be substantially identical, the specific implementation may differ radically. A long time ago, I did rainfall runoff calculations for golf courses in sunny FL - trust me when I say its all the same in theory, but always different in practice.