I decided to inspect my salt cell when the inspect light came on. My understanding is that it comes on after a certain number of hours. This is my first season owning the pool, and I am not sure when the previous owner inspected/cleaned it. When I loosened the rings and took the cell out, water would not stop flowing. The pump was off and the filter was set to "closed". The cell looked fine (although I was in a bit of a panic not knowing what to do about all the water spewing out) and I eventually got it secured back between the two rings despite the water flow. What did I do wrong?