Difused Aerators - Air Flo 2

A growing global trend is to install surface or subsurface aerators in ponds or lakes that are less than 15 feet (5m) deep. Aerators provide the best vertical circulation to add dissolved oxygen to the water.

When a lake or pond loses its ecological balance, the effects or symptoms are readily apparent:

  • Unsightly algae build-up
  • Aggressive weed growth
  • Unpleasant odor
  • Depleted fish populations


If this water source is used to supply an irrigation system, the effects are compounded both functionally and aesthetically:

  • Clogged sprinkler heads, valves and pumps
  • Damaged turf
  • Loss of water storage capacity
  • Odors, fish kills and insect breeding
  • Diminished aesthetic appeal

Golf course designers and architects often prefer to keep landscape designs serene and calm. Rain Bird provides the perfect system for these applications with the Air Flo 2 diffused Aeration System that has no visible pattern. These systems are unique to the aeration line as they use quiet on-shore compressors that pump air to diffusers placed at pond bottom. Diffusers then release oxygen throughout the water column creating mass circulation that mixes bottom and top water layers and breaks up thermal stratifi cation resulting in a healthy, clean environment for aquatic habitat.

Air Flo 2 is the most energy efficient system in the aeration line and is the ideal water management solution for environments where a pond or lake is used for recreation such as swimming or wading as there are no electrical components in the water. Able to operate at depths from 2m-12m, this diverse subsurface aerator has been independently tested for safety and effectiveness, is constructed of corrosion resistant materials, requires minimal maintenance and includes a 2-year all-inclusive warranty.

With the addition of dissolved oxygen into the water and the resulting convection patterns that reduce stratifi cation, aeration systems impacts three factors:

  • Oxygen: aerating the water encourages aerobic digestion of nutrients by adding oxygen, which significantly reduces sediments/sludge build-up.
  • Nutrients: potentially harmful nutrients are kept in ecological balance through oxidation and de-stratification.
  • Temperature: mixing warmer surface and cooler bottom water with dissolved oxygen breaks down stratification to further enhance the ecological balance of adding carbon dioxide at lower levels.

Airflo2 System 1, 2 - DM 1
Airflo2 System 2, 1 - DM 1
Airflo2 System 3, 4 - DM 2
Airflo2 System 4, 6 - DM 2
Airflo2 System 5, 3 - DM 1
Airflo2 System 6, 2 - DM 2

These systems consist of a ¾ hp compressor and diffuser manifolds.

The simple design of the Air Flo 2 system allows for increased flexibility in its application to water quality management. The standard valve box used in the installation provides many advantages from shorter tubing requirements that will offer significant cost savings, to simplified operation making it easy to adjust for better air flow control. In addition, the valve box gives the ability to manage multiple ponds with one aeration system. Custom systems can be designed for any pond configuration, and remember to choose from either self cleaning dome diffusers or stone diffusers when ordering.


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