Rich777! Explain what you mean. I'm curious.

I'll tell you something ewest that you'd find amazing.

In my little .15 acre pond I have 20+ gpm of 54 degree well water spraying into an 84 degree pond. If you get a mere 5 feet in front of the nozzle the difference in H20 temp is unmeasurable. Maybe .5 degrees at the most! I was astounded by this fact. I thought the differential would be a lot more, but it's not. Consequently the only effect the cool water has had on the pond is that the overall temperature of the pond seems to stay about 2 degrees lower than my 1.25 acre pond. And that I can't even say for certain is from the cool water spray. No effect on plankton that I can discern. Same species and same concentrations as other ponds. One thing I've noted is that the algae stays more consistant day to day and week to week. Lusk says this is because of the circulation.

Holding a redear sunfish is like running with scissors.