Does the post filter media contain some amount of cyanuric acid, or is the media washed using cyanuric acid prior to packaging?

No. The activated alumina in the post filter media is not treated with cyanuric acid, nor does it contain any cyanuric acid in the media. For more information about cyanuric acid, click here.

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There is a bubble that forms on top of my Berkey PF-2™, near the area where it attaches to the Black Berkey® Element in my system. Does this mean it is not working properly or needs to be tightened more?

If NMCL’s recent test results show that the Black Berkey® Elements reduce Fluoride, then why do I need the Berkey PF-2™ Post Filter Elements?

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I understand that the media used within the Berkey PF-2™ elements is activated alumina. Is that the same thing as aluminum?