Which action is recommended to avoid pressure surges when starting the pump?

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Multiple Choice

Which action is recommended to avoid pressure surges when starting the pump?

Explanation:
Water hammer happens when discharge pressure rises too quickly as a pump starts, causing a shockwave through the piping. To prevent this, bring the pump up to speed gradually and increase discharge flow slowly. Slowly applying the throttle gives the system time to absorb the added pressure and flow, reducing the risk of damaging pipes, valves, and fittings. Opening all valves at once or hammering the throttle open would create a sudden surge, while keeping the throttle closed would prevent delivering water when needed. So the recommended action is to slowly apply throttle.

Water hammer happens when discharge pressure rises too quickly as a pump starts, causing a shockwave through the piping. To prevent this, bring the pump up to speed gradually and increase discharge flow slowly. Slowly applying the throttle gives the system time to absorb the added pressure and flow, reducing the risk of damaging pipes, valves, and fittings. Opening all valves at once or hammering the throttle open would create a sudden surge, while keeping the throttle closed would prevent delivering water when needed. So the recommended action is to slowly apply throttle.

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