It appears that there is a slight dimple in one of my Black Berkey® elements, is this filter flawed?
No, The Black Berkey® purification elements are about twice as thick as are standard gravity filter elements. This is a built in redundancy or overkill, if you will. The minor dimple in the filter should not cause any decrease in the elements efficiency. However to check its performance, make sure the wing nuts are on tight and do the following: Test your filters by filling the upper chamber with water then add a tablespoon of food coloring for every gallon of water within your upper chamber. If the food coloring is removed entirely, your elements are working properly. If not, check to make sure that the wing nuts on your elements are securely tightened then re-run the test.
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