Fluid flow rates for aeroponics?

[flow]

I have two high pressure continuous duty 1 g/hr pumps. All of the systems I see have much, much more flow than this. If I have mist saturation though, isn't that irrelevant? I can run 24/7 if necessary.

Why are the flow rates so high for the systems I've seen, and why is this necessary?

Im not sure if this is what you mean, but a lot of diy "aeroponic" systems out there right now are not really aeroponic. They are more like an aero/nft hybrid. They use lower pressure pumps that dont create as fine a mist as the "TAG" techniques. These pumps have a much higher gal/hr but much lower psi. Im actually running a aero/nft hybrid system right now and will be switching to TAG as soon as possible. Im not really sure what the exact flow rates are of most high pressure pumps are though, so i may be completely off.