Quote:
Originally Posted by LostCause
That's the thing I remembered. 
The biggest limitation to the technique is your local climate. Evaporative cooling is dependent on the local humidity. If it's hot and humid outside, as I suspect most of the midwest is during the summer, then it will not work very efficiently. The southwest, where it is often hot and dry, allows the latent heat of vaporization of water to absorb energy from the air. |
Yeah, but I noticed that in the video he spoke of a "cool zone" or something like that. My impression wasn't that it had so much to do with evaporation as the difference in the water temperature. In most places the water coming out of the ground is pretty cold. If it's 90 degrees outside and the water is 50 degrees (ok, I live in Wisconsin), that would be part of the equation.