So this morning I tested aroumd 11 am and got a 6.5 fc reading. Then added 33 ounces of 12.5 percent chlorine after we were done thinking I would be up around 9 or so but 4 people, a baby, and a dog were swimming. Just tested at 8 PM and got 6.5 again. So added another 33 ounces. May not be...