How does 100 gallons (375 litres) of plain water compare to 42 gallons (150 litres) of CAFS foam?
Fire personnel say that out of every 100 gallons of plain water applied to a fire, only about 5 to 10 gallons are actually available. Surface tension and gravity prevent the rest from being used. With 42 gallons of CAFS foam solution, almost all the water is put to use (38 to 42 gallons). This is because each CAFS bubble contains water, which sticks to the walls and ceilings.
