On 05/07/2018 01:01 PM, Jimmy Wilkinson Knife wrote:
On Mon, 07 May 2018 18:04:44 +0100, Oren wrote:

On Mon, 7 May 2018 12:36:48 -0400, Ed Pawlowski wrote:

In some places a swamp cooler just adds to
the already high humidity and is not very efficient. They are best used
in the southwest US. Never saw one in the east.

Putting humidity in the air; in the desert, cools the skin. If outside
humidity reaches ~40=45% they are less efficient and almost useless.
Hard water wears them out, a reason for service so often in summer.

Right now it is 87 F with 10% humidity.(Las Vegas)

I don't believe you on the cooling the skin. Your body sweats to
evaporate. Evaporation works better if the air is drier.


Evaporation works all too well in Arizona.