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.
Struggling to keep up Chlorine in spa
- Thread starter canman47
- Start date
Don't know how to read the date code. It says A820 08523. Bought recently from Costco.
I think that is the 85th day of 2020, which is March 25. Todays date is 192 so it appears to be 107 days old. If that's the case it probably down to about 3% strength which kind of correlates with your testing results.
Wow, didn't realize it lost strength so fast. Is it bad to store bleach outside? It gets around 100 degrees here every day.
Yes very bad to store bleach outside in hot temperatures it will lose strength much faster. Store it in the house. I see pool chlorine at Home Depot and Lowes stored outside with date codes 6 months or longer. By then it will have turned into saltwater. I buy Pool Essentials chlorine at Walmart its stored inside and starts off at 10% so it will last longer. I thinks its about $3.86 look for the date code it will look like 20 XXX.
Using the tub for bathing vs just soaking will also use more chlorine. A compromise: rinse off in the shower before soaking. Hotter temps and longer soaks also use more (you sweat more while in it, and chlorine off gasses the higher the temp).
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