Chlorine level should be 3 ppm FC minimum, especially with the CYA level in the 60-80 ppm range. Otherwise you may get algae in the pool (there have been several users on several pool forums who had an SWG and 1 ppm and got algae in their pools). Some users have found that even higher FC levels are required especially if you are in an area prone to getting yellow/mustard algae, but most SWG users go with 3 ppm FC with no problems.

Richard