For reasons I will not get into here, I have no circulation from the main drain. I have just one skimmer and that's how the water circulates.
When I opened my pool this summer, my CYA level was 50 (pool store test). Since then, every couple days, I stick the vacuum head underwater and pull water from the deep end for circulation. I have not used any pucks since I opened and have strictly stuck to the BBB method. Now my CYA level is ~80 ppm.
I ask this question as someone who knows nothing about chemistry: Did the CYA sink to the deep end before I started circulating? How else to account for the increase without pucks?
Anyhow, these are my values. I appreciate any input:
My FC has dropped recently. It was 3 ppm yesterday and I added 2 jugs of bleach. The pool calculator says I'm in my FC target, but the CYA/Chlorine chart says my target should be 9 ppm. Should one be given more weight?