I am so frustrated I have put absorbent amount of bleach in my pool tonight. I used 5 gallons of Clorox concentrated 8.25% and then I used 7 gallons of 6.25% bleach that was an off-brand bleach. Even with all of that bleach I still only got the FC up to 10.5! That seems insane to me. And now I am out of bleach until tomorrow. :-(
What are you using for your water volume ?
Ok. That's good.
Get your FC level back up to 12 and retest in 30 min and post the result back.
When was the last time you added bleach and how much sun did your pool receive today ?