I have a row of spray bar in my pond, it can chill the pond water to 27 degree C. In raining season, it can chill the water down to as low as 24 degree C.
If this machine can chill the water temperature to 2 to 3 degree C below the surrounding temperature. Then it is same as using a row of spray bar. (cost of making a row of spray bars is cheaper,IMHO.)
Not sure whether with a bakki shower and combine with this machine can it lower the water temperature than a normal artical chiller. Example 20 degree C.