Installing aeration to your pond or lake is the single most valuable water management and water maintenance strategy a person can implement. The movement of oxygenated water from the bottom up provides a long list of benefits to your water. Ponds and lakes age — the older a body of water, the higher the organic muck load and the higher total oxygen demand (TOD). Aeration can stop, and even reverse, the effects of aging. Oxygen is the “fuel for the engine” that drives all biological and chemical processes in your water.