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Who uses them?

Because of their cost effectiveness and water efficiency, waterless urinals have become popular with government agencies. For example, the U.S. Army has mandated that, as of 2010, all new military facilities be outfitted only with waterless urinals [source: Davis]. School districts and municipal government buildings have moved toward waterless urinals, too. For example, San Diego's public schools have been using them since 1997 [source: San Diego Unified School District]. Since waterless urinals count toward LEED certification points, businesses and individuals have also installed them to help green their buildings. Large attractions and public facilities, including the L.A. Coliseum, the Georgia Aquarium and even the Taj Mahal in India, have begun switching to waterless urinals, too [sources: Georgia Aquarium, Cutraro].

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