Definition of water hammer in English:

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water hammer

Pronunciation: /ˈwôdər ˌhamər/ Pronunciation: /ˈwädər ˌhamər/


A knocking noise in a water pipe that occurs when a tap is turned off briskly.
Example sentences
  • The sprinkler's closed-case design protects internal parts from debris contamination, while a steady piston valve guards against water hammer, pressure spikes and damage to the overall system.
  • If eliminating water hammer from an older house, locating the offending valve or faucet and installing a water arrester at that location is one solution.
  • Since installation I have had water hammer when the pump shuts off.

For editors and proofreaders

Syllabification: wa·ter ham·mer

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