What action is best to ensure a steady stream when charging a new or relocated line?

• A. Perform an air purge before charging a new or relocated line.
• B. Increase nozzle pressure to maximum.
• C. Use a longer line.
• D. Avoid any purge.

Answer: (A)

Air in a hose line disrupts the water column and makes the stream irregular. Purging before charging removes that air, letting water fill the line fully. When the line is primed, water can flow continuously to the nozzle, producing a steady, controllable stream at the desired pressure. If you skip the purge, air pockets remain in the line, causing sputtering, surges, and an unstable flow that’s hard to control. Increasing nozzle pressure without removing air doesn’t fix the underlying air problem, and using a longer line or avoiding purge doesn’t address the air pockets either. Purging sets up a smooth, reliable flow by priming the line.