Back 3 years ago when my pool was put in a got a whole bunch of chemicals from my builder. I gave the tabs to my friend but just found a 25lb bucket of DiChlor in there. Was thinking about selling it since I use liquid chlorine only but I could use it to boost my CYA if needed, correct? If so where is the calculation for that? I don't see it on pool math, I only see DiChlor for adding chlorine to pool.