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Berkey BioFilm Drops


Berkey® Biofilm Drops have been scientifically engineered for use in defense of biofilm formation in ceramic water filters, carbon (charcoal) filters, and water storage containers.

  •  Store & maintain pure, fresh water
  • Use Berkey Biofilm Drops to extend the shelf life of water being stored for up to 5 years. This eliminates the need to rotate your stored water every 6 months and keeps your water fresh tasting and odor free.
  • Just add four drops to each gallon or 10 mL to 55 gallons of water.
  • When you are ready to use your stored water, use the enclosed test kit to test for residual ions in the water.
  •  Treats 330 Gallons


Use Berkey Biofilm drops in your Berkey Water Filter System:

  • Just add four drops to each gallon every time you refill your system.
  • It helps to preserve your Black Berkey Filter Elements.
  • Extends the timeframe between cleanings.

  • Berkey® Biofilm Drops are used for storing and maintaining pure, fresh water
  • Scientifically engineered  and patented  Copper-Sivler Ion solution in the defense of biofilm related bacteria in ceramic water filters, carbon (charcoal filters)  and water  storage containers
  • Especially formulated for use in harvested rainwater containers, long term storage water containers and for use in emergency preparedness and disaster relief
  • May be used with any type of filter media but works best with Black Berkey® Purification elements
  • Simple and easy to use
  • Instructions can be found Here: Berkey Biofilm Drops Instructions


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Berkey BioFilm Drops
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