Plumber Red Seal · Question
A water hammer arrestor should be installed as close as possible to which type of device?
Water hammer is caused by the sudden stop of water flow from a quick-closing valve. Placing the arrestor near the valve provides an immediate cushion to absorb
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Question: A water hammer arrestor should be installed as close as possible to which type of device?
Answer options:
- A water heater.
- A pressure reducing valve. ✅ A quick-closing valve like a solenoid on a dishwasher.
- A continuously-running circulation pump.
Correct answer: A quick-closing valve like a solenoid on a dishwasher.
Explanation: Water hammer is caused by the sudden stop of water flow from a quick-closing valve. Placing the arrestor near the valve provides an immediate cushion to absorb the resulting pressure surge.
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