Trider - Pond aeration will take a lot more effort for your pond management learning curve. Lots to know about aeration. Windmill aerators work, but not real well in larger water bodies (0.5ac+), and do not work at all when there is no wind which can at times be long enough periods for your pond to restratify. The other thing about windmills is to be sure that the site has very good exposure to the wind from 2prevailing wind directions and better 3 or 4 directions. I seen windmills installed where tree line blocked 50% or more of the wind action. Poor planning and a waste money in my opinion. Do a search of windmills on the forum - lots of previous discussions about them. You have a lot to learn about proper aeration techniques and principles. I will not repeat very much of it here.
Bottom line in my opinion a 1/4hp rotary vane compressor with a good small pore diffuser will move about 10 times more water per hour than the typical pond windmill at top production. Another benefit of an electric compressor is it can produce air and water circulation when there is no wind which could be the difference between life and death to your fish. Windmills now cost about twice as much as a decent 1/4hp electric aerator.
In your location and planned application, I would make an effort to get electric installed at the building site. If you do not plan to build on the site within 2-3 yrs then at least consider your options of using a windmill to circulate the pond until you can build at the site then install an electric compressor and move the windmill diffuser to the deeper portion or section of the marsh to keep that area open in winter. You will need to take provisions with winter operation of the windmill to prevent freeze up of the airline due to water backflow from the diffuser and condensate in airline from the compressed air.
Back in a few hrs, I have a commitment.
