Originally Posted by 1997pond
An Airmax PS20 system is listed as 2.3 CFM. The company rep said the CFM was water moved and not air.
I'm just a dumb Aerospace Engineer, not an aeration specialist, but that just seems wrong. A puny little boxer fan moves 20-25 CFM of air, albeit at basically no pressure.

2.3 CFM seems like the amount of air an aeration compressor should pump.

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
[Linked Image from i.pinimg.com]