Originally Posted By: esshup
Given the effeciency of the motors used in today's aeration systems, would one 3/4 hp compressor be less expensive to run than two 1/3 hp compressors? (if the pond depth and number of turns warranted that sized compressor)

If one pond is completed now, and the 2nd pond won't be completed for a year, I don't know if all the air from the larger compressor would be needed, so the excess would be bled off. I suppose the only way to know for sure is to run the numbers on cost of operating. If the 2nd pond wasn't going to be built for another year, then that's one year of operating expense that wouldn't be needed if two compressors were used. Just saying......... wink


I have no further comment on this subject.