It's an evaporative cooler, you put water in it and when the wind blows thru it cools by means of evaporation.
Swamp cooler is the nickname for them
Chuck
Sweatybetty, do you mean the Silver Lake by the Everett Mall? If you do I before I moved to Eastern Wa in 2001 I lived by Mariner High school for 15 years. Small world.
Chuck
In the sunny desert of Eastern Washington in the city of Soap Lake. What? a desert in Washington State? About 2/3rd's of Washington is desert. I moved here about 5 years ago from the Seattle area.
Here is a link to have a look:
www.thelake.org