What is the purpose of a suction strainer during drafting?

• A. It prevents debris from entering the pump during drafting
• B. It increases intake pressure
• C. It provides a path for air
• D. It enhances nozzle velocity

Answer: (A)

When drafting, keeping water free of solid debris is essential to protect the pump. A suction strainer at the end of the suction hose acts as a screen to stop leaves, mud, and other debris from entering the pump. By filtering out this material, it helps prevent clogging and wear on the impeller and other components, reduces the risk of priming issues, and supports a smooth, consistent flow from the draft source. It doesn’t increase intake pressure—any restriction from the screen can actually cause a small pressure drop if it’s dirty—nor does it provide an air path or affect nozzle velocity.