Pond Boss Forums INTRO Questions & Observations Water Temperature

Temperature change with increased depth will be quite variable depending on the pond and conditions. The warmer mixed zone on top (epilimnion) is relatively uniform temp often 2 deg difference in the entire layer. I've seen a 2 degree difference in the upper 30 ft of epilimnion. It also could be as you say (2 deg/6ft) or temp can easily drop 10 degF or more in one foot (thermocline); it depends on conditions. I'm currently mixing my pond with a bottom diffuser and temp varation between top and 16ft deep is 0.3 to 0.5 deg F.

Once you hit the thermocline in a pond the temerature usually drops 2 to 10 deg F within a foot or two.