My Aquapure 1400 is not generating chlorine. I have no error codes and the "cell on" and "flow" lights are on so one would think that it is generating chlorine. I have the chlorine production set to run 10 hours a day at 90% due to the high temperatures in Texas. My water chemistry was out of whack but I'm working on getting it back in the recommended ranges. The pH is at 8.6, the total alkalinity is as 250 ppm, and the calcium hardness is really low at 80 ppm so I've added the recommended amount of MA and Calcium Hardness (recommended by retail pool store). My salinity is at 3500 ppm so it's right on the border line. I have the new 3 port salt cell which was replaced in November 2012. It worked perfectly fine last year, or so I thought, and now the only way I can keep chlorine in my pool is with weekly shock and chlorine pucks. Could the sensor have gone bad or is the water chemistry to blame? Any feedback would be GREATLY appreciated. Thanks in Advance!