Thank you for your posts here.
As I m a new in this forum located in Europe I m interested in the solution. To use the salt systems in pools is not very common here so the information level is very limited.
i m facing the same issue or low reading ppm from month to month on 5 years old T Cell. Additionally I recognized differen Amps/salt level between positive/negative reading on display.
The maintenance in my area is poor so I m mostly depending on forums and experiences of users and specialists from the abroad.
Looking forward to to hear outcome from TCell testing.