Maybe it's just coincidence that the water has gone cloudy after I've had a new solar cover on the pool for the past 5 days, but I thought I should mention that. Its just one of those blue bubble covers, 15 mil thick.
Todays test results:
Temp - 74*
FC - 2.5
CC - 0
pH - 7.2
TA - 110
CH - 230
CYA - 30 (I know it's low-ish, but it's been working fine with same daily FC loss as last year when I had CYA of 80)
What could be causing the cloudy water? I haven't had ANY algae problems this year or last year, FC has never been close to 0 or even under 2ppm (test nightly) so I can't see how the particles in the water could be algae (dead or otherwise). One other thing I should mention is that I have the pump on a timer which runs the pool for three 2.5 hour intervals each day.
After realizing the water was cloudy and testing tonight, I added half a box of Borax (just because) and about 7 liters of 12.5% chlorine. I haven't "shocked" the pool since I opened it over a month ago, so I thought now was as good a time as any.
Any ideas? Comments?