Backpack Pump 3 : A portable sprayer with hand-pump, fed from a liquid filled container fitted with straps, used mainly in fire and pest control. See also: Bladder Bag
National Wildfire Coordinating Group (NWCG), Glossary of Wildland Fire Terminology, NWCG Program Management Unit, National Interagency Fire Center, Boise, ID, USA 2014. http://www.nwcg.gov/pms/pubs/glossary/pms205.pdf, (For Fr - Amer) {45}