Fixed depth and working angle Can cause soil erosion in earthen ponds Air-cooled motor likely to be exposed to higher corrosion when out of water.
Adjustable depth and angle to hit the target and to better aerate the whole water column Deep Horizontal flow in earthen pond to avoid soil erosion Lightweight submersible motor for better cooling and very easy maintenance.
The action of this aerator only affects the most superficial layer of water. No oxygen on the bottom helps the soil remain anoxic. Heavy duty maintenance.