Koenders Windmill Kit

This product is currently sold out.



Koenders Windmills, Pond aeration

Koenders Windmills are e a long term, low maintenance way to aerate your pond in all four seasons. By using a Koenders windmill you use no electricity and yet get most of the benefits of an electric bubbler. They come in 12’, 16’ and 20’ heights and should be put up so they will catch the most wind even if it’s 300’ from the pond.


Water pumps can also be run off of the windmill to pump water for cattle troughs, cottage or homestead, or for topping up pond water levels.


With no oxygen transfer, carbon dioxide builds up in the water causing winter kill. The windmill supplies an air diffuser with oxygen. The resulting air lifting of water keeps the surface open for gas transfer to continue.


The windmills come in 5-6 boxes, the largest 20’ windmill weighs 270 lbs complete. This will easily fit in most cars or trucks for transport. We also ship by UPS or transport truck anywhere in Canada. We now have special 3/8” weighted tubing to go from the windmill to the air stone. This means no more bricks or weights to hold the tubing on the bottom.


Koender windmills installation

We sell the windmills in convenient kits with top quality hoses, diffusers and check valves. They come in 12, 16, or 20’ high kits and are easy to ship anywhere you are. If you are within 3 hours of our location we will install the windmills for you. Price depends on mileage and terrain that the windmill is to go on. The windmill is built at our shop and transported on a trailer behind a half ton truck. We go to the trouble of cementing in the windmill so it never blows down. When we are done the windmill is up and running, with diffuser in pond.


PLEASE CALL FOR PRICING - 1-519 666-0132


Keonders windmill repair

The Keonders windmill is a very simple unit to troubleshoot, if its not pumping air it could be one of the following reasons;

*Diaphragm worn and has a hole.

*Check valves not closing properly

*Bearings are worn out and have too much play

*Air leakage from loose clamps or hole in air line to pond

*Check valve at air stone in pond damaged

* put your ear against the leg while you are standing there and listen, you can hear a lot of the problems down at the bottom. The noises will vibrate down to help you troubleshoot the problem.

We have the equipment to fix the problem while the windmill is still standing or we can lay it down quickly for easy repairs.

When you first call about your problem we go over the points above to closely find what the problem is, making the repair less timely and saving you money.  This also gives us a chance to bring along the right repair parts.