Jeez, so many questions.
Been going over sump designs, and it looks like it should be pretty straight forward. Have most everything I need. Glass plates need a bit of trimming or replacement to get to the right depths.
Anyways, I am wondering. My skimmer requires "6-8 inches" of depth for optimal performance. Would leave the sump 2/3rds empty. Seems like a bit of a waste. How good or bad of an idea would it be to have the skimmer on a riser to achieve optimal depth? If it's not a bad idea, what's a good way to do it? With a 6" riser I could nearly double the volume of water in the sump.
Also, ran the numbers, even deepest depth I figured, the display could drain 6" of depth (not factoring the pipes) without overflowing the sump in the event of a power outage.