I'm not interested in keeping the water warmer during the winter here in SoCal, but I'm interested in what you think about shutting off the solar panels during the winter. I do not close the pool and we use the spa 3-5 nights a week. My question is, will the panels stay in better shape if I run them year round rather than shutting them off in the winter? I have a 2-speed pump and it does prime the panels on low speed, but I don't think they get fully primed. I like to run on low speed during the winter months, but I could switch over and run on high speed for 3 hours or so if you think it would be best for my panels to run the solar. Thanks for your suggestions.