During the vacuum test, after removing foreign material from the hard suction hose, what is the next step?

During the vacuum test, after removing foreign material from the hard suction hose, what is the next step?

• A. Open the discharge valve
• B. Connect 20 feet of the hard suction hose to the pump intake connection
• C. Inspect the priming device
• D. Bleed air from lines

Answer: (B)

During a vacuum test, you’re checking the suction side for leaks and ensuring a sealed path for priming. After removing any foreign material from the hard suction hose, the immediate next step is to attach 20 feet of that hose to the pump intake. This creates a defined, airtight suction path and provides the proper test volume so the pump can be primed and the vacuum can be checked for leaks. Without connecting the hose to the intake, there’s no sealed path to apply vacuum to, so the test can’t proceed.

During a vacuum test, you’re checking the suction side for leaks and ensuring a sealed path for priming. After removing any foreign material from the hard suction hose, the immediate next step is to attach 20 feet of that hose to the pump intake. This creates a defined, airtight suction path and provides the proper test volume so the pump can be primed and the vacuum can be checked for leaks. Without connecting the hose to the intake, there’s no sealed path to apply vacuum to, so the test can’t proceed.