We built a 15,000 gallon pool in June of 2012. We put in a Digital Nano and the board failed a year and a half later. Less then a year, the second board failed. Anyone have a suggestion on what is the most reliable salt chlorinator? I had to go buy chlorine tonight since the pool was turning green with all the heavy SWFL rain. My wife loves the salt pool, but I'm thinking they are too good to be true. I think the heat and humidity of SW Florida is too much for the circuit boards.