This spring, we've had so much rain, the water has stayed brown, along with the water level 1.5ft higher than last spring. No real algae to speak of at the moment.

I do have serious deep water anaerobic issues. I found that out when I tried an airpump + diffuser stone last year, the gasses coming from the bottom smelled horrid. And the O2 level down there was only 2ppm, as opposed to 11ppm at the surface. That is primarily why I decided to spend the money on the windmill. When I pulled out the diffuser stone this spring, it was covered in rotten black nastiness frown I sure hope the windmill helps with that.

The algae, I'll just have to keep raking it out whenever it shows up...

Some pictures of the windmill erection: Outdoor Water Solutions