How do you cool it down? The only way to cool one thing is to heat another. Evaporative cooling is usually the method if you must cool your water, but it has di

How do you cool it down? The only way to cool one thing is to heat another. Evaporative cooling is usually the method if you must cool your water, but it has diminishing returns and isn't practical to cool all the way to inlet temperature (because source water is colder than the air wet-bulb temperature). This results in water above ambient being discharged to the environment, which affects fish and plant life in the water body.