Can you lower the temperature of a warm swimming pool by adding dry ice to the water?

Answer 1

I have seen many pools with spray nozzles that spray return water as a mist over the surface of the pool. If the circulation pump is turned on at night when the outside air temp drops, the misted water releases some of its heat into the atmosphere, and it falls into the pool at a cooler temp.

The best way to cool your water in the summer is to buy fountains that plug into the outlets that carry water from the pump. Besides being famous for cooling the water, they are pretty.

Answer 2

Sure, but it will take a lot of dry ice to make a noticeable difference in the temperature. The amount required would depend on how much water is in the pool and how much you want to cool it, but for anything larger than an inflatable kiddy pool it'll take a lot of dry ice.

Answer 3

Ice