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Plumbing
Noise in pipe whenever a tap/valve is closed
Anonymous user 1 March 2024 - 2.59 PM
Hello all, I'll try to keep this brief! The issue is driving me crazy. I live in a small flat and whenever a tap or valve is turned off, there is a single "bang" noise. Its always from the same pipe and not necessarily in the pipe leading to the facet/tap that has been turned off. For example, the pipe making the noise is specifically located in the bathroom. It sounds like it could be in the pipes in a wall or under the bath (am planning to take the panel off to have a look). The bang happens regardless of what valve has just been shut, for example, if we turn the tap off in the kitchen, you can hear the bang in the bathroom. Or when the washing machine is running, when the water stops filling the drum, you'll hear a bang in the bathroom. Or when the toilet cistern has finished filling up after being flushed, the pipe will bang. Its always a single bang - there is no rumbling/gurgling/continual banging. Lots of googling suggests it could be water hammer. And from the description, I would say that it sounds like it could be the bang of water against a valve closing, but why does it always happen to that one pipe, regardless of what is being turned off ? E.g. if I have turned the kitchen tap off, should the water hammer not occur where i've suddently stopped the water flow ? I have tried turning the water off and opening facets to let air in but has not helped. Could a lose pipe be the explanation for the reason rather than water hammer?
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3 Answers
