[quote=esshup]
I just got my electric bill after 24/7 aerating for several weeks, and I was a bit surprised at the cost. Also, the power company here (DTE) instituted premium rates between 3pm and 7pm. So, I will dial back the aeration to 12 hours a day (nighttime) and see how it goes.
I will report back on the temps, before and after.
If your electricity provider charges higher rates during the traditional peak usage periods (usually around 3PM - 9PM), then I would definitely recommend turning off all non-essential electrical equipment during that time. There are plenty of other pond improvements that can be accomplished with that money!
That same period should be peak oxygen for your pond naturally, anyway.