Dan Henderson Jun 25, 2013 A fitting depiction of these beautiful old devices. If you don't know, most of them had separate containers of soda and acid that became mixed when the extinguisher was inverted, creating pressure that expelled the water.
A fitting depiction of these beautiful old devices. If you don't know, most of them had separate containers of soda and acid that became mixed when the extinguisher was inverted, creating pressure that expelled the water.