Brand new user to this site, so please bear with me. Hopefully I picked the right spot to post this question. I have a 20K gallon salt pool, just did my first complete water change (after 4.5 years). As part of the process, I also thoroughly cleaned both filters and did an acid dip on my salt cell, which looks pretty good now. After refilling the whole pool and turning everything back on, the digital screen on my salt system just keeps flashing the same message: "Low Salt.......OFF". I've read the manual, but can't seem to figure out how to reset the system. I've tested the water and it's looking good (and the pool looks good as well). I just can't find a way to reset this.......the manual even states that it's common for it to happen after a water change, but I just don't want to damage my equipment or do anything to hurt the pool either. Any advice? Thanks.