I have the same question - and would like additional thoughts.

I've noticed that after I leave the solar covers on for a few days straight it may on occassion get slightly cloudy - but then remove it and it clears up. Even though I test and maintain FC levels at night. Looking for leaving it on or off for vacation.

Also -- if you are you dealing with Algae -- should you keep the solar cover on to help maintain CL level or leave it off to let the sun help? (This is just a what if question - and I understand what to do with bleach - jjust looking for how the solar cover effects algae.

Thanks!!!!