Knapsack Tank 2 : A small tank of up to 18. 2 1 (4 gallons) capacity to enable liquids to be carried on the back, such tanks are used to feed foam compound to a small size foam-making branch
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}