I've been using Berkey filters for about 4 years now and have always found them great for filtering my water. One day I noticed that my Berkey filtered water and tap water tasted about the same, so I decided to get a TDS (Total Dissolved Solids) meter and see for myself how effective these "filters" are. Here are my results for filters that are about a year old: - Berkey filtered water: 037 TDS - Unfiltered tap water: 037 TDS That got me scratching my head. Maybe my filters are completely defective? I mean TDS didn't go down by one, how is that possible? So I decided to take out the old filters, spend $128 and put new filters in. I primed them and ran the water through them 3 times. Here are my results: for the new filters: - Berkey filtered water: 043 TDS - Unfiltered tap water: 037 TDS So, as you can see, "filters" added something to my water. "But," you might say, "that's because they're new!" I thought so too, so I decided to use them for 4 more days. Here are the results: - Berke's filtered water: 043 TDS - Unfiltered tap water: 037 TDS "But they do something!", one might add. "Maybe your tap water is so good it can't be filtered any further." I thought about that too, so I spent another $50 to buy another water filtration system and run the water through it. Here are my results: - New filter system: 000 TDS (two meter readings) - Berkey filtered water: 043 TDS - Unfiltered tap water: 037 TDS So there are several things to take away from this: 1) Berkey is a scam and their filters do nothing. I hope it isn't, and I'd like to believe it isn't like the second option; 2) Berkey is only good for very dirty pond water but not effective for tap water, in which case it would be useless. for the majority of people. Another possibility is that: 3) Berkey has no quality control and some of their filters are buggy, possibly many of them. product again.
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