Black Berkey Purification Element Specifications How should I store my Black Berkey® Purification Elements and how long is their shelf-life? Berkey PF-2™ and PF-4™ Fluoride Reduction Media When and how do I clean the Black Berkey® Purification Elements? Do Black Berkey® Purification Elements Reduce Bromate? Does Hydrogen Peroxide Harm Black Berkey® Purification Elements? Do the Black Berkey® Purification Elements Reduce Dioxane? Do the Black Berkey® Purification Elements remove cyanobacteria associated with algae blooms? Do the Black Berkey® Purification Elements Reduce Sulfuric Acid? Do Black Berkey® Purification Elements Remove Chlorine From My Pool Water? Do the Black Berkey® Purification Elements remove the microscopic parasites that cause giardiasis and cryptosporidiosis? Heavy Metal Test Results: Gravity Fed and Counter Top Systems Do the Black Berkey® Purification Elements remove plastic fibers from the water? Do the Black Berkey® Purification Elements have silver in them? How do I transport my Berkey system? Do the Black Berkey Purification Elements remove GenX? Is the base of the Black Berkey® Element Purification Element BPA free? Do the Black Berkey® Purification Elements remove healthy minerals or electrolytes? Do the Black Berkey® purification elements remove estrogen from water? Will Berkey Systems remove Chromium from the water? How are the Black Berkey® Purification Elements able to remove radiologicals for their full lifespan? Berkey® Water Systems and ORP What are the Black Berkey® Purification elements made of? Can I use my Berkey® system to purify water from my dehumidifier? The water in the upper chamber of my Berkey system does not drain all the way. Is this normal? When and how do I clean the Black Berkey® Purification Elements? How do the Black Berkey® Purification Elements work? More information on Black Berkey® Purification Elements and cyanobacteria. Do your Black Berkey® Purification Elements remove Glyphosate? How long can Berkey water be stored and what is the best method? I heard that it is recommended to replace my Berkey water after three days. Is this true if it is refrigerated? Are your Black Berkey® Purification Elements and Berkey® systems Vegan and/or Kosher? Why do your instructions say: "Do not allow filter to freeze?" How do the Black Berkey® Elements handle beneficial minerals in the water? Should I be concerned about Coliform Bacteria? Why do the log reduction levels differ for varying Berkey® element tests? Some laboratory results show testing to greater Log reduction (example: 99.9% vs. 99.99999%) than others. How should I store my Black Berkey® Purification Elements and how long is their shelf-life? Are the Black Berkey® Purification Elements NSF certified? What is the thread size for the Black Berkey® Purification Element's Stem? What are the washers for the Black Berkey® Purification Elements made out of? Will the Black Berkey® Purification Elements remove kerosene? Do the Black Berkey® Purification Elements remove lithium? Why is my PH level higher after using the Black Berkey® Purification Elements? What happens if I use my Black Berkey® Purification Elements after 3,000 gallons? Since the filter has pores fine enough to remove viruses, does it get clogged frequently? How does the filter element in the Berkey® system deal with viruses? Is the MS2 – Fr Coliphage still known to be a good indicator of virus filtration? Do you have tests on any other viruses? Do the Black Berkey® Purification Elements remove Chloramine? Do your Black Berkey® elements and Super Sterasyl™ Elements reduce fluoride in the water? How can I tell if my filters are working correctly? Can I use the Berkey® system with softened water? What is the TDS reading of the purified water? What should I do if the flow rate in my system is very slow? What is the Micron rating of the Black Berkey® Purification Elements Why is it necessary to purge the Berkey® Post Filter elements? How should I store my Berkey PF-2™ or Berkey PF-4™ post filter elements? Does the post filter media contain some amount of cyanuric acid, or is the media washed using cyanuric acid prior to packaging? There is a bubble that forms on top of my Berkey PF-2™, near the area where it attaches to the Black Berkey® Purification element. 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® Purification Elements reduce Fluoride, then why do I need the Berkey PF-2™ Post Filter Elements? Are the Black Berkey® Purification Elements or Berkey PF-2™ and PF-4™ recyclable? If Arsenic is removed using Black Berkey® Purification Elements then what is the need for Berkey PF-2™ Elements? I understand that the media used within the Berkey PF-2™ elements is activated alumina. Is that the same thing as aluminum? I have high PH in my water; will that reduce the efficiency of the PF-2™ Elements? What are the dimensions of the Berkey PF-2™ and Berkey PF-4™ Elements? I installed my Berkey PF-2™ Elements but my water is a bit cloudy and why does it have a funny taste? What is the warranty on the Berkey's? What is your return policy?

Why do your instructions say: "Do not allow filter to freeze?" How do I clean the bottle of my Sport Berkey® Portable Water Filter? How do I remove mold and mildew from the straw in the Sport Berkey®? What is the plastic composition of the Sport Berkey® components (bottle, cap & straw)? What is the maximum temperature that the Sport Berkey® can be stored at? I want to put it in the trunk of my car and need to know if it would be too hot. Can I filter boiling water through the Sport Berkey® for making hot tea? Do you make a fluoride reduction filter for the Sport Berkey®? I am having difficulty drawing water out of the straw of my new Sport Berkey®. Is something wrong? Can I put my Sport Berkey® in the refrigerator? What is the capacity of the Sport Berkey®? What is the capacity of the Sport Berkey®? Can I clean the filter in my Sport Berkey® filtration bottle? How do I know when 1,000 gallons has been filtered and when its time to replace the Berkey PF-2™ Elements? What is the life of the Berkey PF-2™ Elements?