In 2002, 2010 and 2014- current the cities of Washington D.C., Boston and Flint all experienced catastrophic water emergencies. Washington and Flint had- and still have- toxic levels of lead in the tap water. Boston experienced a major water main break exposing 2 million people to unsanitary water. It was a surprise to all of those people. By using Pure Berkey Purification daily, you avoid unpleasant and dangerous surprises and are always prepared for any contingency. Pure Berkey Pure Water Habits assure your household is consuming pure, plentiful and healthful water for pennies a gallon.