Pond Boss Forums AERATION Should I aerate? Partial aeration?

Dale, you know your bottom profile better than any of us. There's 325,851 gallons of water in one acre foot. Can you give us a rough estimate of how many gallons of water are in the pond?

The bottom contour of the pond will dictate how many gallons are in it, but with you knowing the bottom contour, that might allow you to figure out the volume of water in the pond better than us guessing. i.e a guess would be you have an average depth of 15'. So, 7 acres x 15' water depth x x 325,851 per ac/ft = 34,214,355 gallons

Typically you want to turn over the volume of water in a pond a minimum of once per day. You can go slightly under that but the rule of thumb is minimim 1x as a bare minimum.

A single XL5 in 30' of water will move 21,312,000 gallons per day, and needs a minimum of 2.5 cfm at that depth to do that. An XL4 diffuser will move 15,552,000 gallons per day when placed at that depth and will need a minimum of 2.0 cfm to do that. So, theoretically a compressor that has an output of 5.0 cfm at 16 psi would work as a bare minimum.

The calculations are more complex than that due to the surface area and area influenced by each diffuser, but that gives you a figure to work with for starters, and a rough idea of system requirements. That can be fine tuned with your knowledge of the pond bottom and the resulting total water volume.