Sub surface aeration dramatically increases oxygen levels in your large pond, especially at the bottom. Higher oxygen levels allow for increased numbers of beneficial bacteria which help to improve water quality, water clarity and reduce sludge and muck.
Subsurface aeration creates strong currents in the water that moves oxygen poor water form the bottom of the pond to the surface, where it picks up oxygen from the air. This oxygen rich water then returns to the bottom of the pond allowing beneficial bacteria and enzymes to grow and digest organic debris and sludge on the bottom, reducing the nutrient load in the pond.
To learn more about the many ways a subsurface aeration system can benefit your pond click HERE.
If you aren't sure what size aeration system you need for your pond, click HERE to find out how to determine the correct system.