You've heard of the Berkey water purifier, right? It is supposed to be the best of the best. And they charge according to that reputation. For years, that reputation was well deserved. However in 2010, they had a batch of bad filters. The ceramic filter was not properly glued to the plastic base, and this allowed unfiltered water to rush around the filter, rather than through it. They thought they fixed that problem, and released more filters in early to mid 2011, that were also bad. This time, they used an adhesive that sticks to the ceramic element, but doesn't...