Also, a swamp-cooler works best in very low humidity. I rarely see them other than in deserts.
“ Also, a swamp-cooler works best in very low humidity”
That is so true. I knew a couple that years ago brought their swamp cooler with them when they moved from AZ to MO, where we have 60-85% humility in the summer. In a few days time they had a serious mold problem.