If only it were that simple Jim,
The Scupper drain is connected via an S bend flexible pipe so to get over the bend needs a flexible rod I've tried wire without success.
This is why the flap valve needs a bit of head to open.
There isn't a problem when on the plane but when boat is level I need the s bend to stop the water coming on board just in case the flap valve sticks open.
I have another solution and that is to get the dry stack boys to built up the port side mounting support so the boat is always tilted to starboard but might have a few issues with damage to starboard trim tab if I go this route.
Sticking with the bilge pump solution for now.