Okay - I can't believe I fell victim to this one. My aquarite has been reading low salt due to rain so I put in a bag. More rain and it is still low so 2 more bags. The reading is still low so I tested with my salt tester - and now it is 5700 according to the test kit but 2200 according to the AquaRite. So, I guess I have to partially drain/refill and use the salt test to get it right. I probably should have used the salt test kit to begin with - sometimes I do but the AquaRite has always been "right" so to speak.
The chlorine is also very low -like zero until I added bleach yesterday - so I am wondering if there is something wrong with the cell - that it did not detect the salt correctly? And is not able to put out enough chlorine? usually we are problem free.
The system is now 3 years old and water is 73 degrees