Pond Boss Forums AERATION Systems questions Water circulation and movement

Im not sure there is a "best" aeration system, that is a very good question.If you have both a bottom diffused and a surface aerator you have more bases covered. A ponds need for oxygen (BOD)can change quickly, You can get more accomplished with a bottom diffused system if a pond does not create a sudden overwhelming demand for DO.Bottom diffusion will lift a lot more water than other systems but at the same time warm the entire water column (not good for cold water types)great if you are trying to decompose bottom organics.Bottom diffusion will do a better job at eliminating the daily highs and lows or DO swings.My experience tells me that once a pond starts to crash even kicking in a surface splasher usually does not help (but cant hurt)I think if a pond needed both systems (other than the splasher for backup) that the demand should be lowered instead of trying to increase the DO supply.About 70% saturation in warm water is about the best you should plan on with any system at sea level and at 86F that would be 5.25 ppm and less as your elevation increases (4.9 ppm DO @ 2000ft)I think you are doing the right thing by lowering your demand before nature does it.PS Do add that second disc soon.