Re: Clear, but no chlorine???
Yes! You need to make sure you've reached the target FC. Under shock conditions you don't want to make assumptions. (Once your demand is gone, you won't have to do this).
Have you checked your CYA lately? BigDave mentioned the possibility of some conversion of CYA and I don't have time to back track to see when you last checked it.
26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO
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