## I’m thinking about getting an aeration system, but how do I measure my pond’s depth? | Ponds & Lakes Q&A

Q: I’m thinking about getting an aeration system, but how do I measure my pond’s depth?

Lester – Muscantine, LA

A: Measuring the depth of your pond is kind of like measuring the square footage of an unfamiliar living room in the pitch black darkness. You can’t really see what you’re doing and you don’t know what shape it is, so all you can do is follow the walls and hope for the best, right?

Same thing with measuring the depth of a pond. Unless you’ve dug it yourself, there’s no real way of knowing what underwater undulations exist along your pond’s floor. Is the bottom flat? Sloped on one side and really deep in the middle? Are there shallow nooks along the perimeter? All these factors matter. You need to calculate an accurate number that will help you choose the right-sized aeration system for your pond – because its health depends on it.

It’s not difficult to determine how deep your pond is. First, you’ll need some tools, including a tape measure, some string or chain, a weight, something to write with, and a boat or canoe. Here’s what you do with them:

1. Using your tape measure, mark a chain or knot a string in 1-foot intervals. Securely attach the weight to one end.
2. Climb aboard your boat or canoe with your weighted chain or string and note-taking materials in hand.
3. Travel to at least five points in various areas your pond, more if your pond is particularly large.
4. Drop the weight into the water and note where you feel it hit the bottom. Repeat until you’ve gone to all the different spots and gathered a good sampling of your pond’s depth.

When you’re done, write down the maximum depth and calculate the average of the measurements you took. If the maximum depth is less than 6 feet deep, the Shallow Water Series™ Aeration System is a good choice. It features an energy-efficient, dual-diaphragm compressor that delivers oxygen to the water via two self-weighted membrane diffusers.

If the maximum depth of the pond is greater than 6 feet deep, the Pond Series™ Aeration System is the one for you. It’s powerful enough to aerate ponds up to 4 acres and can be easily adapted to fit uniquely shaped ponds, thanks to its multi-plate design.

Don’t forget: If you’re not sure which Airmax® Aeration System is right for you, we can help! After you do your depth measurements, we can do an aerial mapping to determine which system is best for your pond. Call today to speak to one of our aeration experts: 866-POND-HELP (866-766-3435) or use the Web Aeration Mapping Form.

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