I'm torn whether I should run my new solar pool panels during the colder months. Right now the water is hovering around 58-60 F, which is the bottom of the range for my chlorinator to produce any chlorine. I could turn it off to keep water out of the panels in case of freezing or on the other hand, run it during the day (during winter I run pump 4hr/day) to push the water temp up a few more degrees to help produce chlorine. The lines drain from the roof once the pump is turned off, so I'm inclined to keep it on. What would be the best strategy here?