Golf course ponds are meant to create eye appeal, but many times end up being an eyesore. The reason is simple. Algae, pond scum, murky water, and foul odors in the pond can manifest almost overnight thus haunting the maintenance supervisor as well as the golf course owner.
If you handle the pond, you probably know the causes. Your pond contains too many nutrients in the form of decaying leaves, fertilizer runoff, and/or grass clippings. It possibly has phosphates from unknown sources, too many fish feces or too much uneaten fish
food. It likely has decaying aquatic plants that release hydrogen sulfide and ammonia into the water.
As a practical matter, excess nutrients are going to make their way into the pond despite the best efforts of the grounds crew. So, the ultimate solution is to process these nutrients quickly and efficiently before the pond becomes a cesspool. The only proven, ongoing way to do this is to inject a constant supply of dissolved oxygen.
Dissolved oxygen makes it possible for air breathing microbes (aerobes) to live beneath the surface of the water. In this underwater environment, these bacteria rapidly digest the excess nutrients. The waste product of the microbes is mostly carbon dioxide that escapes harmlessly into the air. As the nutrient levels decrease, the microbes slowly die off.
The two most common oxygen generators recommended for golf course ponds are bubble diffusers and fountain sprays. Bubble Diffusers lie out of sight on the bottom of the pond. In contrast, fountain sprayers float on or just below the surface. They can create sprays in attractive patterns that add to the appeal of the pond.
The ideal oxygen generator for golf course ponds is a self-aspirating aerator. These devices offer the advantage of a small, quiet, highly dependable, surface-mounted motor. More importantly, these devices discharge dissolved oxygen into the deeper subsurface regions of the water.
Self-aspirating aerators create a low-pressure zone beneath the water. Atmospheric pressure at the surface forces air down an air shaft into the lower regions of the pond.
The air around us contains billions of aerobes per cubic foot. These air-breathing microbes are pulled down the air shaft and into the water. Many of them will happily digest the excess organic nutrients that are in the golf course pond. This fact means that it is not always necessary to spend money on a microbial inoculum.
The question sometimes asked is whether it is possible to make the pond water too clear. The answer is yes. If sunlight can reach the bottom of the pond, a new set of aquatic plants can begin to grow on the bottom. This situation can be avoided by placing the self-aspirating aerator on a timer to limit its operating time.
The OxyTurbine® Aerator is the latest generation in self-aspirating aerators. It works on the physics principle of the precession of rotating fluids. It employs the engineering principle of centrifugal force to entrain thoroughly dissolved oxygen into the pond water.
Each of the Aerators configurations is operated by a low horsepower electric motor. The power requirements of the motor can be sized to meet the electrical requirements of your system, from 220 volts and up.
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