Running solar heater at night to lower pool temperature?

Hawkeye2

New member
Sep 16, 2018
2
Southern, NM
Pool Size
8000
Surface
Fiberglass
Chlorine
Salt Water Generator
TLDR: Will running a solar heater at night significantly reduce pool temperature. What’s type of solar heater would work the best?

Details: We have a small pool ~8000 gallons in a glass enclosure. Pool is heating up to 97° F already. We want to avoid opening the doors due to the amount of dirt that will get blown in. I’ve heard of running a solar heater at night will reduce the water temperatures.
We live in the high desert in the southwest US, where the temperature drops rapidly after sunset today the high is 93°F with a low of 57°F.
Does anyone have experience lowering pool temperature this way? If so what type of solar heating equipment do you have, how well did it work?
We also plan on running the solar heater in the winter to avoid using the gas heater.
Currently the front runner is SunRay solar collector absorbers . Solar Collector Absorbers | Sun Ray Solar | Solar water heating and pool heating
I’d like to set these up as glazed units during the winter, and adjusted in the summer to allow airflow over the absorbers during the summer.
Any input is appreciated!
 
Running the solar at night (nocturnal cooling) is used often in your area. If the air temperature is cooler than the pool water, the panels will act as radiators and do what you are asking. How much will vary with the night temperatures. Hayward's Goldline GL-235 control has that option.
 
Thanks for the info and terminology! I hadn’t looked at controllers. But I see Pentair’s Solar Touch controller does nocturnal cooling, and will also control my pump.
 
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