This is my new Iwaki WMD30RLXT pump and some plumbing. This pump puts out about 1000 gph, but as you can see, it is throttled back about half. Notice the union...this make it very easy to service the pump (another union/valve is located on the inlet side of the pump). Return is through Ocean Currents oscillator, very cool little gizmo. Pump and Ocean Currents purchased at Marine Depot.