Hard suction hose is designed to prevent collapse under vacuum conditions and is used for drafting water from below the pump. Which option describes this feature?

• A. A Hose Used For Draft In Hydrants
• B. A Hose Designed To Prevent Collapse Under Vacuum Conditions, Enabling Drafting Water From Below The Pump
• C. A Hose Used For Pressurized Discharge
• D. A Hose Used For Fuel Transfer

Answer: (B)

Drafting water from below the pump requires a suction path that won’t collapse when the pump creates a vacuum on the intake side. Hard suction hose is built with reinforced, thick walls to resist collapse under that negative pressure, keeping the line open so water can be drawn from a source located below the pump. This exact capability—resisting collapse under vacuum and enabling drafting from below the pump—is what the description is capturing. It’s different from hoses used for pressurized discharge or for fuel transfer, and it isn’t about draft from hydrants in the sense of pressurized supply.