Before and after is not just about weight loss…

What is happening to the performance of your dry air coolers? The same could be asked of your air cooled condensers or chillers.
 
So, you’ve noticed a significant drop in performance / COP drift. The ambient air temperature is now much higher in the summer compared to the original design conditions. Has direct water spray onto coils caused scaling and damage? Even if you spray for a short period, scaling is unavoidable. This could also be non-compliant with safety requirements.