Pond Boss Forums INTRO New Forum Member Introduction Hello From Indiana Northern Central

The downside to a windmill aerator is that you won't have air when you need it the most.

For the winter, the diffuser needs to be moved, or switched to a 2nd diffuser in shallower water, placed at roughly 1/2 to 1/3 the total pond depth to leave a warm water (relatively speaking) haven for the fish. I like to have the winter diffuser close enough to shore so that it thaws the ice all the way to shore, or close enough so anything that gets in can get back out. I almost lost my 2 Springer Spaniels one year to them going after a pair of geese and not being able to get out.
It took 20 minutes in a warm shower for them to stop shivering.

My suggestion is that if the pond is within 1,000 feet of electric, run an electric compressor, large dia. tubing in the ground to the pond, then a manifold box at the pond to go to the different diffusers. Self-weighted tubing in the water too.