Master Stream 6 : Any of a variety of heavy, large-caliber water streams, usually formed by siamesing two or more lines into one single heavy line. See also: Heavy stream
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}