My solar cover was taking on too much water and becoming too dang hard to take off and put back on. I cut it up and threw it away this week, and since then my temp has dropped from the mid 80's to 76. Too cold for anyone but me to jump in. I'm sad. I really, truly, hate dealing with my solar cover. But man it extends my swimming season and saves me from having to fill the pool via my water hose, which costs me money and raises my TA and CH big time.