I have also found that a CYA addition via the sock method is much more quickly apparent if the sock is suspended in front of a return, rather than put into a skimmer. I simply tie the sock on a short piece of rope, tie the whole thing to the end of my pool pole (note: weight the back end of the pole so it doesn't take a swim unattended!), place it into the return stream, and let it soak for about an hour. After an hour or so, I can usually begin to squeeze big clouds of dissolved CYA from the sock into the stream. Do this until the sock is empty. It actually goes pretty quickly. My CYA can usually be accurately measured within 24-30 hours.
Congratulations on being able to do what so many of us struggled with at first... 1. Seek the help of experts (not me, YET

.) 2. Listen to what they have to say. 3. Follow their advice, which always includes "Stay out of the pool store!" 4. Go swimming and enjoy that pool!
Well done ma'am, well done!
