Just opened up the pool.... removed the mesh cover, cleaned up water, balanced chemicals, cleaned filter, pressure washed the deck - all systems are "Go!" Water temp at 60 degrees F (Yes, I got in. Yes, it is COLD!). Weather highs/lows for next several days mid-70s/mid-50s. Should I leave the solar cover on, or should I be taking it off in the mornings and replacing in the evenings? Thanks!