02:15PM | 06/23/05
Member Since: 06/22/05
1 lifetime posts
When I turn my shower handle fast half way to hot water, it starts to hammer/rattle. When I turn it slowly, it probably will not rattle. What could be going on?


04:58AM | 06/30/05
Member Since: 08/29/04
227 lifetime posts
The problem is most likely a loose gasket on the inside of the faucet. If it is a two handle faucet, as indicated in your comments, then there is typically a rubber gasket at the end of the stem. This gasket is what shuts off the water against the seat inside the body of the faucet. Sometimes, because the gasket is held in place by a screw, the screw becomes loose. This allows the rubber to move back and forth as water washes by it. That sets up a vibration (wave) inside the water pipe, creating your noise.

The same thing can happen if you get a piece of calcium wafer inside your faucet or some other wafer material. It will vibrate as water passes over it and create a harmonic wave in the water which will rattle the piping.

You will probably have to pull apart the faucet and replace the gasket and flush out the pipe. Make sure you install a screw that doesn't work its way out, the next time.

good luck

Raymond VinZant Plumbing Prof.
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