20130292858 | Combination Submersible and Floating Aerator - An aeration system may have a submersible aerator that may be located on the bottom of a body of water and a floating aerator that may operate directly above the submersible aerator. The submersible aerator may create a laminar column of bubbles and may be powered by an air compressor. The floating aerator may use a motor driven propeller to agitate water on the water surface. A controller may determine when to operate the aerators, and may operate them separately or together in some instances. Some embodiments may have a controller that operates the aerators differently based on energy supply, which may vary in solar powered systems with a battery bank. | 11-07-2013 |