Need help with a non pool question. I have a 300 gallon water tank that I want to add bleach to to prevent algae growth. Based on the pool calculator with a CYA of 20 which I know is more than I will have in tap water I will only need to add 1.9 ounces which is only 1/4 cup of bleach to maintain a FC level of 3.
Web states that drinking water acceptable limit is 4 ppm of chlorine. Is the FC a ppm number or different.
The water in the tank will not be used to drink but to bathe, wash dishes, brush teeth, etc...