Quote Originally Posted by Watermom View Post
Your chlorine has dipped a little low a few times. Keep it within the minimum/maximum range based on your CYA and you'll be fine. Otherwise, everything looks fine.
Yes, I've been trying to do that, but suddenly the ability to retain a good level of chlorine stopped, and chlorine has been disappearing a lot faster than before. I added a bit of info from before the 8th of July, when I got my K-2006 kit:

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We had a good bit of daily rain from the 9th to the 15th, and somewhere in there I had a filter valve leak where I slowly lost about 1000 gallons. Diluting the pool with fresh water probably had something to do with the change in stability, but I'm not sure what else could have caused it, other than not putting as much chlorine in daily or every other day in that rainy period?

I was using an OTO kit between July 2nd and 8th, and it was VERY dark yellowish every day in that time frame, so the chlorine was holding up well, though I admittedly don't have an very good idea of exactly how much chlorine there was.