Bang in pipes when tap is turned down

Question

Hi,
I have a bang in pipes when water tap is closed or even when toillet is finishing to top up. What can be done to remove the bang ?
Thank you

Ulku · Accepted Answer

You have loose cartridge on one of your cold mains taps causing banging noise.

Chris · Answer

Noise will occur if water pressure is too high, simply because it is being forced through pipework too quickly and is crashing around. Water pressure should be between 1 to 1.5 bar. Any higher and your pipes and appliances will be overworked and can become damaged

Phillip · Answer

Fit a arrester on cold supply as sounds like you have water hsmmer.
PKJ Plumbing

Nicholas · Answer

The pipe work probably isn’t clipped up, this will secure the pipe work, as stop the pipes banging.
Or if the pipe work is running under the floor may need some insulation around them.

Stefan · Answer

If you have water tank iti possibility to have air

Dashamir · Answer

Loose or incorrectly supported pipework that need to be fixed  or to fitt water hammer arrester.

Armando · Answer

Hi There, the issue is with the cartridge on the tap and have to investigate which tap might be

Henrique · Answer

Hi 
MIght be two option 
first one: pipes are loose and with pressure they make the noise
second one: is air in the system one of the taps at your place can be leaking and cause that noise

Vasile · Answer

Hi the pipe are loose and they need to be add fixing

Stevie · Answer

Hi. Occasionally with the main stop valve. a sudden surge from closing a tap or a toilet stopping filling etc can cause a loud bang. This is sometimes due to the jumper on the stop tap moving suddenly. The first thing to check is whether or not the stop valve is fully open. If it isnt then fully open it and then turn it back just a quarter turn.

Bang in pipes when tap is turned down

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