Within the last 3 weeks I have replaced my salt cell (SC-48), the tri-sensor assembly, and the salt cell cord that runs from cell back to control box. This is the 4th year with the system, and I have had some type of issue each year. Before replacing tri-sensor, the unit had warning purifier off low flow. Now it shows low salt level add 750 lbs of salt. I have tested three times with strips and the average is 3500 ppm of salt. I have tried to recalibrate salt in system settings but I can only get it to go to 1200 ppm. Autopilot customer service dept has been very unwilling to offer assistance, so I have given up on calling them. After spending $750 trying to get this swg going I am in need of help. If anyone has had this issue or knows how to resolve this issue I would be very interested in hearing from you.