It would be very interesting to see a pump curve on their system/s as it would have a windmill speed "twist" (pun??? - lol) that we do not see with the constant RPM electrical ones that are most common. The correlation between wind speed, psi, and CFM would help confirm Bill's comments (which I concur with, btw).
If you are considering buying one, please request a pump curve that correlates wind speeds from them and we can talk nerdy aeration pumps for a bit.
