I have shut SWG down. Pump/filter has been running 24/7 except about 2 hours today when I ran robotic pool cleaner. Filter pressure has remained constant since 4/1/12 tho I backwashed late this afternoon. The water is not cloudy and there are no visible signs of dead algae. I brushed and saw nada. I wouldn't say the water is sparkling but definitely is clear. I guess I would describe it as a dull clear. Test numbers at 5pm with sun behind the trees: FC = 15.5, CC = 0 and pH = 7.3 to 7.4. I have not added any bleach today.
So, I should test FC, CC and pH at dawn? I have to leave my house about 6:20 in the morning and will be gone all day. Could you give me recommendations for the morning. I'll test and proceed per your guidance.
Thanks!