[I am in the process of replumbing to add a fuge to my setup (30G tank, ~15G fuge, 10G sump). Was considering adding checkvalves to my lines to minimize the amount of siphoning back into the sump. I am running a Mag 9.5 which is split 3 ways: 3/4" return to tank, 1/2" return to fuge, 3/4"...