Date: 7/20/2002 12:59:42 AM (GMT-7)
IP Address: 220.127.116.11
In Reply to: Swamp cooler? (nt) posted by Ben
they have multiple names, pretty simple system -- you dribble water through a mesh-net filter (it honestly looks like a quarter-inch thickness of loosely-packed ramen) and pull air across the filter via a squirrel-cage fan. Evaporation causes the air to lose heat as it passes, and the saturated filter eliminates a fair amount of dust, too. A float valve connected to a water supply keeps the cooler's reservoir full.
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