How to eliminate water hammer noise after flushing a toilet

| by Will Wang
How to eliminate water hammer noise after flushing a toilet

Have you ever been startled by a loud bang in you pipes after your fill valve shuts off? This is called water-hammer. Water hammer is a pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly. Water hammer commonly occurs when a valve closes suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe. This pressure wave can cause major problems, from noise and vibration to pipe collapse. It is possible to reduce the effects of the water hammer pulses by restricting the flow rate or in severe cases using accumulators or arrestors.

Resonance is the rapid banging or jack-hammer sound in a pipe during the fill process. This is caused by restrictions in the shut-off valve, supply line or fill valve. For troubleshooting Water Hammer or Resonance, please click here.

Topics: Bathroom, Plumbing & Fixtures, Sinks & Toilets, Water Saving Devices

Companies: Fluidmaster

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