OTO Testing Question

[Pappy]

@ Carl, the scale reading is 4. Which says my Chlorine is 4, 8 and 12 simultaneously? Since I have no way to lower the chlorine levels, other than wait, why waste the reagents with multiple tests. I was just wondering if there's something ELSE going on. Is there something BESIDES astronomical chlorine levels that might cause this? I bought the test kit @ Walmart a month ago, so it should be fresh enough.

[BigDave]

3C of 8.25% bleach should add 3.5 ppm FC to 4500 gallons. If you're only doing this daily, I don't see how the FC could be astronomical. Are you testing FC before or after adding bleach? How many days have you done this? What's the CYA level? Are you still cleaning up the algae?