When do I change my pool ionizer cell?
The ClearBlue mineral cell will last 6 – 12 months in a pool and 2 – 3 years in a spa depending on the size and usage of your pool or spa. Cell life is not guaranteed and varies depending on pool/hot tub size, weather conditions, usage, copper level, and system settings. Use lower system settings for longer cell life.
If you have the controller with the BLUE number screen, the ‘Ionizing’ or ‘Mineral Action’ light will FLASH RED when it’s time to replace your cell.

If you have the controller with the RED number screen, the ‘Ionizing’ light on the ClearBlue will go OFF when it’s time to replace your cell:

If your cell plates look like this, it’s a good time to replace the cell:

How do I replace the cell?
Please visit this page for details on how to replace the cell
Where can I purchase replacement cells
USA
ClearBlue authorized retailers