What is the primary function of an intake strainer in fire apparatus?

The primary function of an intake strainer in fire apparatus is to filter contaminants from water. This element is crucial when drafting water from a static source, like a river, pond, or other bodies of water that may contain debris, dirt, or algae. By filtering the water before it enters the pump, the intake strainer helps prevent these impurities from clogging the pump and damaging the firefighting equipment. Keeping the water supply clean is essential for maintaining the efficiency and effectiveness of the fire apparatus.

While increasing water pressure, controlling flow, and extinguishing fires are important aspects of firefighting operations, they do not pertain to the function of the intake strainer. Its sole purpose is to protect the pump from contamination, allowing for smooth operation during firefighting efforts.