FJ, is there any reason to leave this outside? could i keep it inside the structure therefor re-cooling already cool air? Sadly, that won't work for very long. Swamp coolers work best when the humidity is low (the 5-15% on the playa is ideal). However, they work by evaporating water into the air, t...

FIGJAM wrote:I had posted that prior to testing, then found out it was 12vac.

It was talked about later in the thread. :oops:

This is the pump I like best and it is 12 volt DC.

http://www.siliconsolar.com/replacement ... p-103.html

Yes, I saw that pump too - great deal! I bought 3 of 'em!

The pump I will use this one. http://www.discount-pumps.biz/low_voltage_pumps.htm it uses .2 amps so the total power draw will be .7 amps. With a 45 amp hour battery 25 to 50 hours. Figure 3 to 4 hours extra sleep in the mournings or afternoon naps, should last all week. There are many pumps listed...