The pool was opened ~3 weeks ago, and when I took off the cover the water was pretty cloudy and there was lots of debris. I cleaned out the debris, but decided to raise the FC to shock levels to be on the safe side. The FC has been slowly going down, but remains higher than my target range even at 3 weeks out. Any reason to worry? No one is going to swim in the pool as the water temp is still 57°F. I'm just thinking about the pool and the equipment circulating the water.
3 weeks ago I started with FC 28 and a CC of 0.
The water is clear and sparkling (but very cold!). We have had a fair amount of rain and lots of pollen in the interim.