On initial start up back in September, I had my SWG set at 60% output and was running about 5ppm at that setting. When the weather started cooling down, I noticed that the chlorine levels shot up dramatically...to about 10ppm. I had about .5 in FC. I Super Chlorinated the pool (100% SWG for 24 hours) then backed the SWG down to 35% output. Leveles are still varying between 8 and 10ppm. Any advice? Should I drop output even lower?