W + Conc (=Sol) + A + A = Foam (Foam is Bubbles and Bubbles is Water)
The water pump. Even though water is 1 of 4 of the ingredients to making Foam, it is not the intent of this web site to teach Firefighters how to operate water pumps. All Fire Engines have water pumps. Pumps can come in many sizes, capacities, brands, etc. Pumps can be powered in a number of ways. There is no special size or type of pump required to make Foam. Apparatus operators must be familiar with the rig and understand the fire pump according to the manufacturer’s design and documentation, coupled with the individual Fire Departments operational policies and procedures.
Suffice it to say that the fire pump must be operating to make FOAM – W.
