Halfway to Fundraising Goal, Project Has Distributed Water Filters to Nearly All 1,106 Open Schools in Puerto Rico and to Families and Communities; First Large-Scale Reverse Osmosis System Installed in Hospital in San Juan Press Release – WASHINGTON — Since Operation Agua launched in October, the partnership is halfway to reaching its fundraising goal, and the Asociación de Maestros de Puerto Rico, an affiliate of the American Federation of Teachers, has distributed 3,849 Kohler Clarity water filters to nearly every open school in Puerto Rico to provide safe drinking water to the 272,131 students enrolled. The remaining 25 schools will receive their water filters when the schools reopen after the holidays.