We've been having various issues with my Jandy 1400 recently, and my pool guy just told me that his digital meter read a salinity of 4800. My Jandy read 4000 but it's calibration had been messed with recently. My Leslie's test strips show around 4600. Leslie's Pool store electronic meter shows 4800. Then I got a Taylor silver nitrate reagent kit and it reads 5800! Reproducible - 28 drops with 10ml sample! I'm not sure what to believe and where to go from here. 5800, really!