Loud noise coming from stopcock

[Glasgowman]

Hello sorry if this message doesn’t go to the correct part of the site I’ve just joined and need help. Problem I’ve got is whenever I run any tap in my house there is a loud droning noise a bit like a ship. You hear the noise anywhere downstairs or upstairs but especiallyunderneath the kitchen sink where the stopcock is! If I open one tap anywhere the noise is there if I open another tap the noise gets louder if I open theboth taps up full or even a thirdtap full the noise gets really loudand then you hear it disappearfast, after it has disappeared andI close the 3rd tap the noise is still not there, after I close 2ndtap the noise is not there, and obviously when I close the lasttap it stops. But when I startagain and open any tap sameagain the loud noise is there!Don’t think it’s water hammer asthere’s no banging. I recentlyfitted a new downstairs toiletand sink with new mixer tap. Ican’t really remember if theproblem was as bad before I installed the new stuff. I’veturned the inside mains of at stopcock and also outside mainsto have a look at the stopcock, changed the washer on thestopcock but still nothing. For a moment when I changed thenew washer I ran the kitchen tapand there was no noise at all,but it only lasted for a min thenit returned. If I get to the bottomof it I’m sure I’d manage to fix itmyself but just don’t knowwhere to start.

 

[Sharp Point]

You say you changed the washer on the stopcock, was the jumper( the part you put the washer on ) really loose? Sometimes they wear so much, the flow of water can spin them and cause a horrible noise.

 

[Glasgowman]

You say you changed the washer on the stopcock, was the jumper( the part you put the washer on ) really loose? Sometimes they wear so much, the flow of water can spin them and cause a horrible noise.

Yes the part that washer goes onto was loose, but thought it was almost as loose as a new one that I had purchased. I would have fitted new insert but new one was to small to just took back to shop. You reckon I just need a new stopcock insert?

 

[Sharp Point]

Yes the part that washer goes onto was loose, but thought it was almost as loose as a new one that I had purchased. I would have fitted new insert but new one was to small to just took back to shop. You reckon I just need a new stopcock insert?

Replace the stopcock

 

[Sharp Point]

It’s worth a try, they’re only a few quid. Not saying it’s definitely the problem, but it’s worked for me so many times.

 

[Glasgowman]

It’s worth a try, they’re only a few quid. Not saying it’s definitely the problem, but it’s worked for me so many times.

Ok thanks a lot. I’ll give that a try then let you know how I get on cheers

 

[MARTIN LISTER]

Try fitting a shock absorber.

 

[Glasgowman]

Try fitting a shock absorber.

What does that do Martin?

 

[MARTIN LISTER]

Hi,
Its a small steel cyliner fitted inline after the stopcock that absorbs pressure fluctuations when a tap is opened.

 

[MARTIN LISTER]

It is probably best fitted as close as possible to the tap making the noise.