Although alternative systems of extinguishing have recently developed extensively, the most common means of extinguishing the flame is water. In many cases, water is applied directly as an extinguishing agent, in another case, water is used to create a “water wall” to protect people's lives and health from heat irradiation, and in another case, in a very complex fire situation, water dust obtained through the dispersion of water acts as an invaluable fire extinguishing agent, which then helps with the cooling of combustible structures to prevent the scale of the fire disaster.

However, all of these aforementioned actions cannot be carried out in the absence of special water resources at the facility and the communications necessary to bring this water to the point of use. Even if water is only used as a fire extinguishing agent, it is necessary to have a fire tank, fire water pipeline, and fire hydrants (the device needed to remove water from the water pipeline network to extinguish the fire) in order to have a successful fire extinguishing operation.

Usually people think that water is always in the fire extinguisher