Humming Pipes

[23ede23]

Everytime water is turned on or the toilet flushed etc, we hear loud humming in the pipes. The vibration from this can be felt in the cold pipes when touched. To knock the humming off you have to turn a cold tap on quickly and fully, run a few seconds then off again, and this usually cures it. What is usually the cause of this?

Thanks.

[Tab]

Are they humming because they dont know the words.:-)

Sorry about hat but could not resist it

[Tab]

I think this is caused by air in the system .Try reducing the pressure by turning off the mains water a bit at the valve where the pipe enters the house

[Alho]

Some toilet cisterns have a rubber diaphragm in the ball valve instead of a washer, as this diaphragm weakens it can set up a vibration in the pipes when the cistern is nearly full, caused by the movement of the water causing the diaphragm to oscillate.Replacements cost only a few pence. If the noise happens after flushing a toilet try holding the ball valve to see if it stops.>

[The3rd Earl Of Derby]

Any particular tune? ;-)

[Phil Anthropist]

Sounds like water hammer, which is usually caused by a worn water valve. You need to change the washer or diaphragm in the valve that is causing this noise, or change the whole valve. If the toilet cistern is fed from the rising main then the valve in the toilet cistern is the culprit. But if the valve in the toilet cistern is fed from another cold water tank that has a ball valve then you need to make sure which valve is the culprit.

[23ede23]

Thanks to all who replied to this post. Valve in water tank, water hammer/pressure all related to the problem.

Thanks again for all the help and advice - SPOT ON!!!!!

PS: Thanks to the comics also, who put some humour into the problem!!!!!

Phil Anthr> "23ede23" wrote: