I was told last year to look at my rocks and see if there is bubbles forming on their surface. There was all kinds and 24/7 aeration was way to much.

Running the aeration 24/7 in the summer warm saturated the pond more than just running it at night. I now run the air from 1am to 7am only when it is cooler. It has kept our pond cooler over all and the pond is new as well. We only have perch in our pond.

It is neat swimming. The top 4 feet is warm but your toes are about 10 degrees cooler.

Cheers Don.

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7/8th of an acre, Perch only pond, Ontario, Canada.