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