Ok, so here's the best I can do with the software on my puter.
The "PUMP" is a Poseidon PS3 which should give me about 700 gph at the 4'6" head I have. Sump is a standard 25g tank, which barely fits in the stand. The return is 3/4", and there is a check valve just above the pump. The overflow is a 1 1/2" bulkhead to an external box with 1 1/2" Herbie style drains w/ gate valve. They drain into the same chamber the skimmer is in through a CPR 4" sump inlet assembly w/ filter sock. The refugium on the right is fed by a small pump (MaxiJet 1200 maybe?).
