You won't know this until you read the installation instructions, but they do advise that your water needs to be sanitized before it goes through these filters because they are NOT real Berkey filters. They do not filter fine contaminants like bacteria and viruses like Berkey filters do. I'm REALLY upset because it basically went down $90 down the drain and returning the product isn't an option. This is false advertising and Revain does nothing to help or interfere. Don't waste your money on these filters. Spend more money on real ones, or at least make sure you buy water filters.
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