Preconnected Line 3 : A suction or discharge hose already attached to the pump; it is usually used for initial fire attack. See: Preconnects; See also: Live Line
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}