cooling the pool in Phoenix

[hikernut]

I've been cruising the website for a few days, and getting educated. Great resource. I'm sure you folks hear that a lot!

One more thought on the shade... In addition to making the water more refreshing, am I right in thinking that it would make the summer pool maintenance easier...
(1) Because the water is cooler, and the nasties grow better in warmer water?
(2) Because the shade blocks at least some of the chlorine-damaging UV light (assume the shade blocks UV, for now anyway).

Assuming my thought process is correct here, any idea which of the two effects is the more important one?

Thanks,

hikernut

[aylad]

I Don't know about thought #2, but as far as #1 goes, I don't think you will see a appreciable difference in algae growth with a few degrees difference in water temp. Algae will grow just as well in 80 degree water as it will in 90 degree water.