My pool got built this past fall, and I had some initial problems with my Autopilot TC system. After finally getting the pH probe replaced, the pH control has been working flawlessly. However, I haven't been able to get the ORP control to work consistently. I have a feeling that the temperature of the water is playing havoc with my ORP readings, and turning on the SWG because the measured ORP seems to go down when the pool water temp goes down. Does anyone have any idea if there is a temperature correction curve for ORP vs. Temp that I can examine? I think it has something to do with the Nernst equation, but I'm too far removed from that kind of math to create a curve for ORP vs. temp, assuming all other variables remained constant.