""Is it safe to assume an air pump rated for 15ft would be sufficient for a pond 12 ft deep, regardless of the total gallons of water in the pond? Since moving at least some water is better than not moving any, the diffuser efficiency can always be upgraded later.""
That IMO is a pretty safe assumption.
Vendors ratings for pond size aerators is in surface acres. I think the rating and pond size assumes 24/7 operation. I like to oversize the system usually with more diffusers and run the compressor less assuming the compressor has adequate cfm for multiple diffusers.
Last edited by Bill Cody; 06/24/18 08:01 PM.
