Hello Ms. Deaner,

Burgermeister is right that natural circulation (turnover) occurs twice per year normally during spriing and fall. There may be other times that this occurs during rain and cold snap events but usually only twice per year.

We make a general recommendation that at 52 degree water temp is a good time to ramp up the system. This is when the bacterial communities begin to wake up and reproduce and work. When they do this, they begin to use oxygen.

Happy ponding and I will miss Mr. Deaner's post, so please keep visiting Pond Boss!

All the best, Cary