Our Koenders Windmill has been aerating our pond for more than 15 years. We have a relatively small and deep pond about 1/4 acre in size. Its a fish pond that is stocked with trout.

The windmill aeration system by Koenders Windmill has kept the pond water clean and healthy for the fish so as to avoid Fish Kill. It also limits and prevents algae and weeds from growing in the pond.

During the winter I position the air diffuser at the side of the pond. This keeps an area of the pond open at the edge which attracts deer to the pond and other wild life. The only other thing that we have done to this windmill up until this year is grease the swivel tube under the compressor which makes the compressor swivel easier at the top of the tower.

This year we are changing the diaphragm and check valves for about $50.00 - that's pretty good for 15 years of good use out of an aeration system. Nothing holds up like a Koenders Windmill.

Email me if you have any questions.

Ralph Welton
Economy, NS
Canada

Koenders Windmills,

Thanks for a great product - we installed two of your Koenders Windmills over 8 years ago and they are doing a great job keeping two of our ponds healthy and clean. During the winter they are extremely useful, even in 30 below freezing temperatures - each windmill keeps anywhere from a 10-20 Ft hole in the ice all winter long.

We do not have to chop at the ice to vent it from any toxic gases being released from decomposing sludge at the bottom of the pond and it even gives us a nice fishing hole to fish from. The ice in the rest of the pond stays about 1.5-2 Ft thick but we do not ever go close to the edge of the holes. We have never had a fish kill since installing these windmills.

The reason we went with your windmill aeration systems in the first place is because we do not have any power outlets close to the ponds. I am certainly glad of that - these windmills have cost us nothing to operate for years and they have outlasted all the electric aerator systems that any of my friends have bought over the years.

Thanks again

Stephen Kakuk
Kingsford, Mi