Spa water has little or no sanitizer even though a Caldera FreshWater salt system is installed.

Safety: Turn off power before removing the salt cell.

• Check salt level: Test and adjust salt concentration to the range specified by Caldera for your model.
• Clean salt cell: Remove the FreshWater salt cell cartridge and soak it in a mild acid solution (per manufacturer instructions) to remove scale, then rinse thoroughly.
• Adjust output: Increase the output setting on the control panel and run the spa for several hours, then retest sanitizer.
• Replace cell: If sanitizer remains low despite proper salt level and cleaning, replace the salt cell cartridge.