We are still flabergasted as to how Red Sea was able to cram so may features and innovations into the RSM250 while keeping the overall assembly and operation simple and idiot-proof. The first things that struck is is that there are 3 pumps! As an author on reef aquarium water flow, it touches the core of my reefing heart that the Red Sea engineers included a primary circulation pump rated over 600gph/2400lph and a secondary circulation pump rated over 300gph/1200lph! The primary pump draws water through the standard chemical/mechanical/biological filtration and the secondary pump appears to draw water through the protein skimmer and the accessory chamber. Not only is this a very generous amount of flow but having two pumps adds a level of redundancy which would protect the reef animals in the case that one pump should fail. The protein skimmer is driven by a beefy pump which injects air via a unique perforated needle-wheel with a range of pin sizes. The protein skimmer has a turbulence reducer wedge, a thick air feed line which is kept close to the skimmer body and directed towards an integrated silencer/muffler and air control valve. As if all these bells weren’t enough, the riser tube has a few features to encourage consistent foam production whether the skimmer is running dry or wet. Pictures in the gallery below of all the components mentioned above.
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