Water Extinguisher : A fire extinguisher using water as the extinguishing medium; the water may be propelled either by a hand-operated pump or by pressurized gas
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}