Quote Originally Posted by fairfieldmania View Post
also...new water is only 5 days old....why are you thinking there is something that is creating that demand on chlorine?? something in the city water??? there can't be algae since pool was completed cleaned......
If you added 5 pounds of chlorine, and saw no chlorine bump, then yes, I think there is something (probably a nascent algae bloom) that is creating a demand on the chlorine. I'm not saying there was anything in the city water to begin with, but I am suggesting that it only takes a day or so with a chlorine level of zero for algae to start growing. That's why I want you to test your chlorine levels as I described above, to rule out or confirm a chlorine demand.