What is one disadvantage of using water as a fire suppressant?

The selection of water as a fire suppressant does have its disadvantages, and one significant issue is that it can spread flammable liquids. When water is applied to a fire involving flammable liquids, it can cause the burning liquid to float on top of the water, leading to a wider spread of the fire. This phenomenon occurs because many flammable liquids are less dense than water, resulting in them being pushed away from the source when water is applied. Instead of extinguishing the fire, this can inadvertently increase the danger and complicate firefighting efforts. Understanding this aspect is crucial for firefighters, as it emphasizes the need to assess the type of fire before choosing an extinguishing agent.