I noticed that my salt levels have not decreased in over a year according to the salt water system. There is a discrepensy of 400 between the taylor test and my actually cell. 3000 for the taylor and 3400 for the salt cell, is this pretty normal to get something like this? Also, whenver i add salt to my pool is there a way to reset my salt water generator to get the new results or should it automatically gather that information?