The humidity was fairly low 40%. Down here Swamp coolers will not work well. The water mist here is used as a supliment. There is a formula for figuring out the best temp change you could expect. It is based on ambent air temp and flow, water temp and flow and humidity.
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"Humans get a lot done,not because we're smart, but because we have thumbs so we can make coffee." Flash Rosenburg