Rather than having a pipe with a slot to provide water flow across the screen, has anyone created a waterfall effect which uses a chamber (acrylic or plastic box), into which water is fed or pumped and which would overflow over one (slightly lowered) side of the chamber upon which the screen material would be fastened?
The water would then flow into a sump to be pumped back to the display tank or directly into the display if the scrubber were to be placed above the tank.
This could only be one sided but might eliminate issues with the slot clogging, uneven flow across the screen, and spraying & splashing.
Depending how the screen was fastened it might make removing the screen for cleaning quicker and easier too.
Thoughts?