Good Morning All....I was previously adding 6% -96 oz. jugs of bleach to my pool Walmart brand. Last week the husband and I went to the Dollar Store and found 6% - 182 oz. of Dollar Store brand for only $1 more and bought a whole cart full. I added some to my pool the other night according to the Pool Calculator and tested the next morning. Was targeting a FC level of 12 and it raised the level to 17ppm. I thought I had made a mistake and checked the calculator again. I hadn't made a mistake. So, last night I added approx. half of what the calculator suggested and my FC level is 13 this morning up from 7 ppm last night. This bleach is like using 12%.....Must be some really good bleach. Anyway I think I am going to keep buying it from the Dollar Store. PS....Got my CYA down from 80 to 70......Yay!