Pond Aeration

We design bottom based aeration systems to fit each individual pond so that it operates optimally in the situation. The top of every pond is flat but the bottom contours are unique in each pond and change how an aeration system operates. The overall shape of the pond also dictates how the water moves and mixes throughout the pond. A well designed system moves and mixes water in most areas of the pond to ensure good oxygenation and gas exchange with the atmosphere. We use our experience combined with all of the technology available to us such as our bathymetric mapping service to create the best design possible for each lake and pond. An improperly designed system can actually do more harm than good if it leaves zones of anaerobic water where phosphates can release from the bottom composition to feed algae growth in other parts of the pond.

To fit our client's needs, budget and preferences we offer the following options to get a properly designed aeration system installed into the pond:

  • Design a custom aeration system using detailed depth information we collect on your pond
  • Fully install the custom designed aeration system
  • Provide you with a custom designed aeration kit for you to install yourself to save labor costs

Aeration prevents stratification. This is where the water separates into a warm upper layer and cold bottom layer and the two do not mix. Anglers often refer to this as a thermocline. As the cold water remains trapped at the bottom, oxygen depletes and fish can no longer use this area to live. The lack of oxygen causes a release of phosphates from the bottom composition which feeds algae growth. Other compounds such as ammonia, sulfides and carbon monoxide build until the levels reach levels toxic to the fish. Certain weather events can cause these two layers to suddenly mix releasing the bad water to the upper layer stressing fish and occasionally resulting in a fish kill event. Preventing a thermocline from ever establishing is the minimizes the risk of a fish kill event and keeps the pond more healthy and balanced.

Here is an EPA guide on using techniques envolving pond bacteria.

Case Study - Aeration and Pond Bacteria

Case Study - Pond Bacteria Sludge Pellets

A short list of the benefits of a properly designed, installed and maintained aeration system:
  • Eliminate stratification (thermocline formation) and the harmful conditions that develop
  • Improve gas and chemical exchange between the bottom and the surface
  • Increase usable habitat for the fish
  • Introduce oxygen into the water column
  • Reduce hydrogen sulfide, ammonia, methane and other gasses created through normal natural bacterial action
  • Reduce the potential for fish kill events
  • Increase the activity of the beneficial benthic organisms to remove muck
  • Increase the fish carrying capacity of the pond
  • Reduce algae growth by reducing the available nutrients
  • Reduce chemical usage to control unwanted aquatic plant growth
  • Reduce free phosphate levels in the water
  • Prevent stagnation
  • Reduce odors