Augie's recommendation is likely the cheapest way to go. We'll have to see how it does for him long term as I have not read much about folks using that system here at PB.
Snipe has one. Maybe he'll chime in if he sees this.
I will caution the reader who is considering the BigMax system - DO NOT order the system online - call the vendor and order over the phone. The air line included in the web site price is plain old rubber hose - it is NOT weighted air line. There is a nominal upcharge for weighted hose, but if you buy it off the web you'll then need to buy enough sinking hose to reach the diffusers, or figure out a method of adding weight to make the standard hose lay on the bottom of the pond.
