The ASA Aeration Systems provide maximum aeration and circulation to lakes, dams and large ponds. The system utilises a shore-mounted Rocking Piston Compressor to deliver air to subsurface diffusers on the lakes bottom. The resulting column of rising bubbles circulates oxygen-rich water, eliminating stratification and improving the overall condition of your pond or lake. With increased oxygen and circulation, excess nutrients in the pond or lake are metabolised, resulting in cleaner water and less muck.