Discharge Rate 2 : The amount of water expelled from a hose line or pump in a given amount of time, usually expressed in gallons per minute (gpm) or litres per second (1/s)
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}