This is my first time to post, but after studying your BBB method my pool has gone from green to crystal clear! I started using bleach from grocery store, but I continued using the trichlor tabs in skimmer (my bad). I received the TAYLOR kit, and got the reading of high chlorine. I quit using the trichlor tabs two days ago.
But, I am worried about high chlorine level of 17.
FC: 17
Total C: 0
PH: 7.2
Alk: 75
CYA: 80

I tested for calcium, but the TAYLOR kit did not turn red, just pink. But, I still did the next steps and reading was 120.
Vinyl liner, 26000
Thank you!