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Mr. Luddite

On 2/3/2014 5:46 PM, KC wrote:
On 2/3/2014 2:21 PM, wrote:
On Mon, 03 Feb 2014 12:54:46 -0500, KC wrote:

Got a bud in St. Pete... He says most of the days when he wants to use
the pool, the temps are 89+ and it offers little relief.

Turn on the solar collectors and run it at night.
My timer/controller even has a switch for that.
It runs from midnight to 0600.
That will scrub several degrees off of the heat. The screen cage also
keeps the heat down a little. It seldom gets above 87. My wife doesn't
even want to get in it until it is 84. Nobody but the grand kids will
get in it if it is under about 79-80.

What are solar collectors for, how would turning on solar collectors
make the pool cooler? I don't get it.

If you run the pool water through the solar panels at night when the air
temp and blackbody radiation (panels are looking at black space) they
will radiate heat from the water, removing heat.

Same deal happens with solar battery chargers if the blocking diode
shorts (which is rare). It will charge the battery during the day and
discharge it at night. Ask me how I found that out. :-)