Q: I think my aerator is undersized but how do I know?
Mitch – Roseburg, OR
A: As you probably know, proper aeration with a deep water or shallow water aeration system is key to a healthy pond or lake. When water circulates and moves, oxygen flows throughout the water column, the water temperature is even, and the fish and wildlife thrive. You’ll see no stagnant areas or catch whiffs of bad odors. Instead, you’ll have a welcoming, enjoyable body of water, perfect for play and recreation.
If you think your aerator isn’t doing its job, it’s easy to diagnose: Just take your pond’s temperature!
To begin, you’ll need a non-floating pond thermometer, a long string, a tape measure, a waterproof marker, a stopwatch, and a pad of paper and pencil. Tie the string to your thermometer, and measure and mark every 24 inches down the length of the string with your waterproof marker.
Once your tools are set up, gather them together, hop in your boat and motor to various locations in your pond.
At each spot, noting where you are, drop the thermometer into the water and take the water’s temperature readings 24 inches down at a time, from the top to the bottom. Let the thermometer rest long enough (5 to 10 minutes) to get the true temperature reading at your desired depth.
Repeat this process in different areas (particularly if your lake is unevenly shaped), taking notes all along the way.
Once you’re done taking your lake’s temperature, look at your notes. Is there more than a few degrees difference in any of your temperature readings? If so, you’re more than likely under-aerating your pond.
The good news is that The Pond Guy® offers a free aerial mapping service. We’ll measure your pond and tell you where the diffusers should be placed so that you’re getting even aeration throughout the body of water. Take advantage of this free service! Your fish will thank you for it!
Pond Talk: Do you have any tips for taking your lake’s temperature?
Filed under: Aeration, Pond & Lake, Water Quality Tagged: | Aeration, aeration mapping service, aerial mapping service, airmax, airmax aeration, airmax aeration systems, mapping service, sufficient aeration, under aerating