Definition of water hammer in English:

Share this entry

water hammer

Pronunciation: /ˈwôdər ˌhamər/ /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.
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.