The additional of an aeration system is one of the greatest biological benefits you can provide for your lake or pond. There are generally two types of aeration systems; diffused aerators and surface aerators. They both have their own unique attributes, read on to find out more.
Diffused Aeration Systems
Diffused aeration systems have the advantage of infusing oxygen into the lake through compressors. When the aeration system is set up, the compressor forces the oxygen through weighted tubing that connects to porous diffusers which are placed on the bottom of the lake. When the air reaches the diffuser, it is forced into the water column as the bubbles rise to the top.
As the oxygen makes it way up the various layers that naturally occur in a lake mix, a process know as destratification. Lakes naturally stratify or separate with thermoclines, meaning they get colder and store less oxygen the farther away from the sun and wind at the surface. Diffused aeration systems are very effective at destratification, and are most commonly used in waterways with depths greater than 8 feet, but can have a benefit in many waterways.
These aerators are placed with a float on the surface of the lake, rather than the bottom. These units pull water at the top of the pond through a tube, forcing the oxygen-rich surface air to the end of the tube a few feet below the waterline. They do not have the total water column penetration that diffused aeration systems have, but do mix more than the standard floating fountain. These are common in smaller ponds or lakes. Surface aerator systems do provide some aesthetic benefit as they come in a variety of patterns and light options.
Which system would be best for your waterway? Let the knowledgeable staff at Lake and Wetland Management help determine which product will be the best investment for your lake or pond.