I have a question about free chlorine maximum levels. I have always used 5 as the maximum number I would swim in, but tonight I started reading some info on the internet that seemed to conflict that a bit. I was not looking for this, but found it while I was looking for info. about kill times of stabilized vs. unstabilized chlorine. South Carolina's Dept. of Health and enviornmental Control's pool guidelines showed 8PPM free chlorine as the maximum for a stabilized or non stabilized pool. Ga. Dept of Public health showed 10PPM as the max for a stabilized pool and 5 as the max for unstabilized pool. All the conflicting info. confuses me a bit.