BERKEY BIOFILM DROPS
A package of Berkey Biofilm Drops contains a 60 ml container of Berkey Biofilm Drops and a kit for testing residual ions in stored water.
One bottle of Berkey Biofilm drops treats up to 1100 liters of water. Residual copper and silver levels meet EPA and WHO standards when used as directed.
Use Berkey Biofilm Drops in your Berkey water filtration system:
Easy to use. Just add four drops per 3.8 liters of water each time you fill your system.
Helps preserve your black Berkey filter elements.
Extends the time between cleanings.
Use Berkey Biofilm Drops to store and preserve water:
Store and keep water for up to five years. Eliminate the need to rotate your stored water every six months.
Keep your water fresh and odor free.
Just add 10 ml for every 210 liters of water.
When you are ready to use your stored water, use the test kit provided to check for residual ions in the water.
Stored water must be filtered through your Berkey water filter system before use.
96.5% Copper Sulfate Pentahydrate, 2.5% Silver Nitrate, Complexants and Stabilizers : < 1%