What is water hammer?

Water hammer is identified as a shock wave that occurs due to sudden changes in the flow of water within pipes. This phenomenon typically arises when a valve closes quickly, causing a rapid deceleration of water flow, which generates pressure surges, or shock waves, throughout the plumbing system. These waves can lead to loud banging noises and, in severe cases, may damage piping and fixtures due to the high-pressure impact.

Understanding water hammer is essential for preventing potential structural issues within a plumbing system. It can be mitigated through the use of water hammer arrestors or proper pipe installation techniques that allow for gradual changes in water flow. The concept of water hammer highlights the importance of managing pressure changes in plumbing systems effectively to ensure longevity and reliability.