Just bought a Circupool RJ45 2 weeks ago. Fired it up and salt read 5800 ppm, while I know my pool is 3600 ppm since I did a self test. Two days later I looked at the cell (it is clear for those that have not seen it) and there was already a significant build up of white calcium on the plates. Is this normal? I figured since the salt read 2200 ppm over the actual reading something may not be right. Does anyone else have any experience like this? I can't be acid washing my cell every two weeks if I expect it to last into the year! Thanks. Any input is greatly appreciated.