Plumbing Basics: How Well Do You Know Pipes, Fixtures, and More?
What is the function of a water hammer arrestor in plumbing?
Correct Incorrect A water hammer arrestor absorbs the shock caused when a valve or faucet is suddenly shut off, preventing pipes from banging or rattling. This issue, known as "water hammer," is caused by sudden pressure surges in the plumbing. Installing an arrestor protects pipes and fixtures, while also reducing noise.