Q: My pond is spring fed, so I don’t need an aerator, right?
Charles – Wadsworth, OH
A: Great question! First off, let’s tell the folks at home the differences between a catch basin pond and a spring-fed pond.
A catch basin pond is a reservoir filled with precipitation runoff—and pollution, in some cases—from the surrounding area. A spring-fed pond, however, is fed by a spring or ground water, which keeps the pond full. If you have cold areas of water in your pond, that could indicate that you have a spring-fed pond.
As the fresh water flows into the lake or pond from the underground aquifer, the water does move somewhat. But it doesn’t keep it agitated enough to naturally aerate it and maintain good water quality.
Whether you have a spring-fed or catch basin lake or pond, it’s critical to keep the water aerated. Why? Because doing so prevents thermocline, which is when the water forms layers, or stratifies, depending on the water temperature.
During the summer in a pond that’s not properly aerated, the water at the top is warmer and full of oxygen while the deeper water remains cooler and nutrient-rich. This phenomenon causes the fish to hang out at the pond’s surface. As the seasons change, however, the pond water does a “turnover,” which is where the warmer, oxygen-rich water sinks and the cooler, oxygen-depleted water to rise—leaving your fish gasping for breath.
Aerating Your Spring-Fed Pond
Obviously, you don’t want that to happen! So you should aerate your pond, even if it’s spring-fed. The action created by an aeration system, such as the Airmax® Deep Water Aeration System and the Airmax® Shallow Water Aeration System, effectively moves the water and causes the shallow and the deep water to mix. The Deep Water Aeration System is powerful enough to aerate ponds up to 3 acres and can be adapted to fit any shaped pond. The Shallow Water Aeration System is ideal for shallow lakes or ponds that require multiple aeration plates due to depth restrictions.
The result: oxygen is spread throughout the water column while dangerous gasses, like ammonia, are released at the water’s surface—and that means happy fish, good water quality and a healthy lake.
Pond Talk: Would you prefer to have a spring-fed or a catch-basin pond on your property?