Why is it necessary to purge the Berkey® Post Filter elements?

The media used in our post filter elements can contain a small amount of harmless process dust or fines, due primarily to assembly, handling and shipping of these elements. For aesthetic reasons, we recommend the Berkey® Post Filter elements be purged on both ends to remove the majority of this process dust, prior to installing […]

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If Arsenic is removed using Black Berkey® Purification Elements then what is the need for Berkey PF-2™ Elements?

NMCL’s most recent laboratory testing indicates that the Black Berkey® Purification Elements reduce Arsenic up to 99.9%. Typically carbon based elements that reduce Arsenic begin to lose that ability rather quickly. This is likely the case with Black Berkey® Elements, which means that their efficiency at removing Arsenic likely plays out long before the 3,000-gallon […]

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