For simplicity sake, I'd like to oversize my screens...if at least a portion of the screen is lit correctly, does it matter that the rest of the screen is under lit/not lit?
I have dual overflows with each draining 350gph. 350gph/35gph recommended flow = 10+ inches (width) of screen I could run. All I really need are two 6x6 screens. I plan to run 20W CFL on each side of both screens (40W/screen).
Since its just easier to put a 10 inch screen in there rather than adjust plumbing so I only have flow of 210gph (6inx35pgh), can I just put a 10x10 inch screen in? Instead of going smaller, like a 10x6, I think it needs to be at least 10 if not 12inches so the screen touches the top of the water in my sump.
Obviously the screen is way bigger than needed, but if there is sufficient wattage on a 6x6 section, does it matter?