When to change carbon blocks? Mystery solved!
Knowing how to test your carbon blocks performance is really important in ensuring the highest water quality output. Rather than relying on a visual or monthly change-out of carbon blocks, there's a simple test you can do to truly know when your blocks have been depleted.
For this test, you will need a LaMotte Total Chlorine test strip, which will read both chlorine and chloramines,
Run your system for 30 minutes.
Take a sample from the waste water line of your RO system.
Test the sample using a LaMotte Total Chlorine test strip. If your results come back as 0.5 or above, I would recommend changing your carbon blocks.