Back Flushing 1 : A method of cleaning fire fighting equipment by running plain water from the discharge outlets to the suction inlets to remove clogged debris and traces of salt water or chemicals
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}