I'm helping a friend's dad restore & replumb a 250 gal display. He had a 29 gal sump, but I'm upgrading the sump to a 125 gal and relocating all the plumbing, sump, & equipment in the garage. Gen of Kritter Tanks is converting the 125 gal Truvu into a custom sump. He made a cad drawing with the the sump orientation from left to right: return<skimmer section<fuge<fresh water reservoir. There are two 1 1/2" drains with one feeding the H&S A-200 skimmer and the other feeding the fuge. Any thoughts?