Pond Boss Forums AERATION Systems questions Air pump question

I cannot find a curve for the EcoPlus 7, but did find the maximum pressure. At about 7psi, the pump stops pushing air. That's about 10-11 foot of water given 2 psi of line and fitting loses. So, my guess is that it is putting out about 2 CFM at your 8 foot depth. Pretty good, really, for a single diffuser system. The SC50 can produce up to 30psi and still deliver about 3.3 CFM. This piston pump would be good for deeper waters and/or multiple diffusers.