You got to love these pool stores. At the first store I was ‘confidently’ told I would need to empty my 30K IG pool to convert from Bq to Cl . I told the sales person (in so many words) that was untrue and left. The second store told me I needed to go with a non-chlorine shock prior to adding chlorine. That seemed reasonable so I continued the conversation. So they sold me three pounds of Potassium peroxymonosulfate which they told me to add to the pool and run the filter for 48 hrs. After two days I came back with a sample to which I was told to repeat the process. I seemed to be going nowhere fast. That’s when I found this forum and decided to go ‘full bore’ with the Cl.
So then I picked up 15 gal of 12.5% bleach, adding ~2.5 gal a few times a day over the weekend. Nice shades of green! By Monday morning I was clear. Then, not knowing how to proceed, I returned to the same store where they sold me a bunch of Calcium Hypochlorite shock, a bucket of TriCl tabs and a floating tab dispenser.
Then I read somewhere on the forum not to use the tabs. They weren’t giving me any FC anyway so I stopped using them and went back to the 12.5% Cl,
adding ~1 gal each evening. Readings are still too low so I’ve got to do some more research on the forum. I’ve got to find out more about CYA and alternate Cl dosing methods. My test kit does not test for CYA unless I’m missing something. I have a Leslie test kit that is similar to the Taylor #56-210 Test (4-High) Kit.
Current readings: FC: 2, TC: 3, PH: 7.5, TA: 120
Bottom line is that the pool looks great and I am so glad that I made the switch to Cl. Wish me luck going forward.