I bought a 1262 eheim which does roughly 900 GPH to feed my skimmer, BRS Carbon/GFO reactor and calcium reactor. Most of the flow needs to go to the skimmer which is currently supplied by a mag 5, the other two get supplied by maxijets - 1200 I think. So I have looked at manifolds but I don't see one that will do the trick without a lot of add on plumbing. Should I just plumb a series of gate/ball valves with the skimmer being first in line off of the pump? Ideas and suggestions would be appreciated.