Exhaust Primer 2 : A priming device that diverts the exhaust gases of internal combustion engine driving a pump through an ejector venturi at such a velocity that a vacuum exists, thus exhausting air from the pump. See also: Primer
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}