Why do my test strips and the tests at the pool store show very low chlorine when the Purezone shows very high chlorine?

• Test strips and pool tests from Leslie's, Pinch-a-Penny and others "bleach out" when the water sample is heavily chlorinated i.e. FC 10ppm or higher and will not display accurate values for FC
• Purezone's FC test pads do NOT bleach out and will display accurate higher FC values for spas with very high FC levels
• Purezone's FC test pads will display up to a maximum of FC 25.4ppm.  The FC is capped at the upper limit of 25.4ppm.  
• If the Purezone consistently displays an FC level of 25.4ppm, the actual level could be much higher

How do I resolve the High FC issue for my Salt Chlorinator spa?

• Usually turning down the Salt Chlorine Generator will resolve the issue within a day or two 
• If the level of FC is extremely high, you should shut off the Salt Cell Generator until the FC level is in the normal range.  Taking off the spa cover and exposing the water to sunlight will also help to deplete FC levels.
• Note:  If the FC does not lower, after you adjusted down the Salt Chlorine Generator, you may need to verify that the Salt Chlorine Generator is functioning correctly 
• Note:  The expected life of a high quality Salt Cell Chlorinator is between 3 and 7 years before needing replacement