I think you're right.
I think this is the package I'm going to go with. It says it's good up to 1/4 acre.
1/2 HP Aeration System Not sure how good of a diffuser that is, but for $399 you get the pump, weighted hose and diffuser.
Then tack on the solar panel and power inverter I listed above and I'm out the door for under $750
I'll just build a little "dog house" to store everything in by the pond and mount the panel on top.
That's half the cost of the windmill system...but I'm sure gonna miss the aesthetics of that windmill.
