I posted this on another thread: "I've just finished setting up mine, it's hooked up to a PanWorld 50PXX-MD30X pump, rated at 1110gph. The flow seems really good, but the tank is still empty (just water) so it's hard to tell for now... but I really like it the way it ramps up/down from one output to the other, there isn't an abrupt change in flow (this is due to the fact that there are always one and a half outputs open at any time)"
(btw, the tank is a 75g)
You're welcome to come and see it in person when the tank is ready, should take me a couple more weeks. 3 of the outputs go to pairs of loc-line nozzles after a "tee", close to the top of the tank, and the 4th output goes to a horizontal spray-bar that will be hidden behind the rockwork.
Nuno