I have been following the methods described on this site since I opened my new pool the first of May. I've had no problems at all maintaining crystal clear water, that is until today. I just took the solar cover off and found a lot of algae in the pool. The cover was put on Sunday evening and it was on until just now. I've been testing the TC, CC, and pH everyday and maintaining the proper levels. Water temp is 90. I have a VS pump that runs for 2 hours at 2350, 4 hours at 1100, and then finishes with 2 hours at 1600. I'm trying to figure out what might have caused this. My current numbers are as follows:
Any advice or suggestions would be helpful also. As a side note we were planning on going out of town tomorrow thru the weekend, should I try and handle this now or wait? My plan was to raise to shock level tomorrow and keep the cover on til we came back, with the pump running its normal schedule everyday.