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Rainwater in evaporative coolers makes your cooler pads last forever!

You never get any salt or other mineral build up on your evaporative cooler pads when rainwater is your water source. And salt-free, nitrogen-rich rainwater is also the best water source for your plant and soil life.Enter some intro copy about this video here.

This video also gives you tips on cooler placement for greater cooling efficiency – whatever your water source.

The video was shot in the dryland city of Tucson, Arizona where average annual precipitation is 11 inches. Filming was done May, 2022 at the beginning of our hot, dry season. Summer rains usually come the end of June or early July.

Get more info on how to harvest and utilize the rain, and many other free, on-site water sources at:

Evaporative coolers made by Bill Cunningham

For the energy costs of air conditioning condensate and other waters,
plus how the refrigerant in air conditioners, refrigeration units, freezers, and ice machines is a major contributor to climate change, see:

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Get more info on how to harvesting and use rainwater and other free on-site waters like greywater in Brad’s award-winning books available direct from him at deep discount, see the links below…

See the new, full-color, revised editions of Brad’s award-winning books
– available a deep discount, direct from Brad:

Active SystemsRainwater Harvesting