Koenders Windmills,

Thanks for the great product - we have owned a Koenders Windmill Aeration System for over 15 yrs. The windmill is primarily used for algae control and to keep our fish healthy during the hot summer months and the cold winters that we get here in Minnisota.

The only maintenance that we have on our windmill is the maintenance repair kit that we change approximately every 4 years. Other than that, this windmill keeps on going.

Thanks again for a great product.

Tim Forslund
Scandia, MN

I want to thank you for the great service that your product has provided us for the last ten years. The product is virtually maintenance free. I have change the diaphragm and check valves a few years ago and that is about it.

It is doing a really wonderful job aerating my pond and keeping my fish healthy and well. We have a very deep pond about an acre in size and I hate to think what my electric bill would have added up to if I was using an electric aeration system to do the same job that our Koenders Windmill Aeration System has been doing for over 10 years.

This windmill aeration system works 365 days a year in harsh winter conditions and in warm hot summers.

Thanks again for the great product.

Floyd Bergman
Fort Recovery, OH

I have been using your products for the last 7 years and am very impressed with the reliability, durability and functionality of both your windmill aeration system and your electric aeration system (EL2).

They both operate on the same diaphragm based air compression system and that has proven to be very effective in aerating my 3 acre fish and swimming pond.

We rely on our pond for save recreation for family and friends during the hot summer months and in order to ensure this happens we want to avoid the growth of algae and weeds in the pond. A combination of the Koenders windmill and the electric aeration has proven to be great. When the wind is not blowing the electric aeration is working and when the wind is blowing then we have both the electric and the windmill aeration working. By using the wind we have cut our operating costs of aerating our pond in half.

The windmill has been maintenance free for 7 years and we have not done a thing to it. the electric aerator works constantly. Considering the usage we are surprised that after more than 5 years of constant use that we have only had to replace a drive belt and a diaphragm on the system - less than $ 100.00.

Thanks
Kevin Liudahl
Sioux City, Iowa