washeteria
A building that houses a village's only running water for drinking, washing, and showering.
A washeteria is a single building with showers, toilets, and washing machines. The washeteria often doubles as a water treatment plant with heated water storage.
1997, Drinking Water Infrastructure Needs Survey, link
Where it comes from
Blend of wash + cafeteria. The trademark Wash-a-teria was prominent in the U.S. South during the 1930s.
Adapted from the Wiktionary entry washeteria (CC BY-SA 4.0).