Q: My pond is spring fed. Does aeration do anything more for my pond than what the fresh water does?
Tom – Eden Prairie, MN
A: You gotta love a spring-fed pond. Rather than being volume-fluctuating catch basin for precipitation runoff (and pollution in some cases), it’s filled by a spring or ground water. That means the water level stays fairly consistent regardless of rainfall—and that’s a definite plus if you’re using the lake for recreation or watering livestock.
As great as they are, spring-fed ponds do have their challenges. They’re prone to thermocline, which is when water forms layers or stratifies depending on the water temperature. And even though spring water flows into the lake or pond from the underground aquifer and provides good water exchange, it is typically low in dissolved oxygen and not moving enough to circulate the water column.
Just about every pond or lake can benefit from aeration—including those that are spring fed. Here’s how an Airmax® Deep Water Aeration System can help your pond:
- Circulates the Water: Rather than develop pockets of cold, oxygen-depleted water, a pond with an aeration system moves the water both horizontally and vertically.
- Prevents Thermocline: 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. Aeration churns the water, allowing the shallow and deep water to mix.
- Infuses Oxygen into the Water: Your lake and its underwater inhabitants need oxygen to survive, and aeration pumps that O2 into the water while releasing dangerous gases, like ammonia, at the surface.
- Promotes Muck Digestion: Beneficial bacteria thrive on oxygen, too, and those tiny microorganisms eat through muck and debris that has collected in your lake—ultimately creating a cleaner pond.
For those readers who have an aeration system in place but are unsure if the water is properly aerated, we suggest taking temperature readings at multiple depths and in different areas of your pond and recording any extreme variations, which indicate a lack of circulation from your aeration system.
Pond Talk: Some pond owners transform their natural springs into interesting water features, like artesian wells. Have you found a unique way to take creative advantage of the spring that feeds your pond?