Consider this FYI. A small 1/4 ac pond will not need a lot of continuous aeration compared to a larger 0.7 to 2 ac pond. You can DIY very good aeration systems for smaller ponds of 0.1-0.5ac for less than $300-$500. The price difference of ($1425-300= $1125) will buy one a lot of electricity over the years. Be aware that windmills when needing maintenance is harder and more difficult maintenance than that for a small 1/4hp bench top air compressor. All aeration diffusers windmill or electric should have annual check and cleaning. An electric compressor will also generally provide more aeration hrs & not need to run daily continuous, and often stronger aeration per year than a windmill esp during low wind periods of dog days of summer. Often for small 'normal' ponds one good daily mixing of 2 to 4hrs is all that is needed to keep small ponds 'healthy'. As usual it always depends.
On the side of windmills; they are great for pond aeration if you don't have electricity.
Last edited by Bill Cody; 03/06/15 12:18 PM.
