I'm sure having a hard time keeping up with chlorine in our spa. Seems like I put in a lot of bleach for such a small tub. I've Slammed all day twice but according to my test kit I've never got CC below 1. Is that normal? We've been using 4 oz. Clorox 6% once in the morning and once in the evening but it's not enough. It's down around 1.5 before the next use which is below the Pool Math minimum of 3. Is Pool Math correct? It says 1 oz. of bleach should raise FC by 2.3 but I just did that and it only went up 1.5. Is my bleach bad? Are my reagents bad? CYA is around 35 but that is a very vague test as far as I'm concerned. Does CYA reduce FC? Do I really need to use a cup of bleach a day for a 200 gallon tub? I must admit that my partner and I use it as our daily bath so I'm sure that increases chlorine use. She's pretty clean but I do landscaping so I'm a little dirty and sweaty at the end of a day.