Loud noise coming from stopcock

[sammathias]

So have you isolated the tap and tried another tap and the noise is still there?

 

[Glasgowman]

So have you isolated the tap and tried another tap and the noise is still there?

Yes the new waterfall tap that I fitted. I isolated that wee while ago cold and hot

So have you isolated the tap and tried another tap and the noise is still there?

Yeah I tried that a wee while back, isolated the cold and hot on the new waterfall tap and the noise is still there. Doesn’t matter what tap I open up the noise is still there. But any tap that I open up the loudest part of the noise is when I open cupboard where stopcock is at. Any tap that I open the noise is there if I open another tap it gets louder then if I open a third tap it gets really loud and at that point it disappears with the 3 taps on full. If I then close the 3rd and 2nd tap so that the last of the 3 taps are running the noise has still vanished then I close the last tap. Start again from any first tap and the noise is back

 

[sammathias]

Could be a ballvalve in a toilet, could well be the stoptap itself. Shock absorber like Martin said could work but I'd rule everything else first as they are quite pricey.

 

[Glasgowman]

Could be a ballvalve in a toilet, could well be the stoptap itself. Shock absorber like Martin said could work but I'd rule everything else first as they are quite

I put a new toilet in new suite, and changed the ballvalve washer in top toilet. I’m going to replace the insert in the stopcock next week and see how that goes. Thanks for all reply’s and I’ll let yous know how I get on

 

[king of pipes]

Isolate the cold main externally and change the stopcock I would guess it is the loose jumper type and has failed . Cheers kop

 

[Glasgowman]

Isolate the cold main externally and change the stopcock I would guess it is the loose jumper type and has failed . Cheers kop

Thank you I’m going to give that a go. The internal part of my stopcock thread is 1 1/4” are these easy to pick up? Got one from toolstation but internal part was smaller than the one I have

 

[deg]

Is there a check valve fitted above the stopcock. Some cheap versions of these make an awful noise when water is passing through them.

 

[Glasgowman]

Is there a check valve fitted above the stopcock. Some cheap versions of these make an awful noise when water is passing through them.

Not sure deg back home tomorrow so I’ll give it a check, thanks

 

[Glasgowman]

Is there a check valve fitted above the stopcock. Some cheap versions of these make an awful noise when water is passing through them.

Not sure deg back home tomorrow so I’ll give it a check, thanks

 

[king of pipes]

post a picture when your back home one of us will be able to help you out . cheers kop

 

[Glasgowman]

post a picture when your back home one of us will be able to help you out . cheers kop

Thanks mate

 

[Glasgowman]

post a picture when your back home one of us will be able to help you out . cheers kop

That’s a few pics uploaded of under the sink, and there is a check valve above the stopcock as you will see

 

[Glasgowman]

That’s a few pics uploaded of under the sink, and there is a check valve above the stopcock as you will see

View attachment 34013

View attachment 34014

If I was to replace the stopcock and check valve to try and eliminate the problem, would there be enough room in between the pipes to remove and re fit? Just think it looks a tight fit that there would be no room to remove check valve and stopcock once nuts loosened without having to pull on some pipes? Thanks

 

[king of pipes]

Hi mate there will be enough play on the pipework to change both the NRV and Stopcock you can get them from any screwfix branch . Cheers kop

 

[Glasgowman]

Hi mate there will be enough play on the pipework to change both the NRV and Stopcock you can get them from any screwfix branch . Cheers kop

View attachment 34016

View attachment 34017

Thanks, do you reckon the new stopcock and nrv would be exact same length as the ones that are fitted atm so I didn’t need to mess around with pipe work above or below the valves? Thanks again for all the great help guys

 

[deg]

Remove the check valve and hammer the internals out of it then refit. This will help eliminate the valve as your problem and can be properly replaced at a later date.

 

[king of pipes]

Will be a straight swap I would guess use the existing nuts if you need to . Cheers kop

 

[Glasgowman]

Will be a straight swap I would guess use the existing nuts if you need to . Cheers kop

Thanks deg & kop. I will be trying it as soon as I get parts next week, now feeling confident that this will be the problem and hopefully get it solved 🙂

 

[rpm]

Please fit the valves the correct way round, should be arrows on the sides. 😉

 

[Glasgowman]

Please fit the valves the correct way round, should be arrows on the sides. 😉

Thanks, I know I discovered that when I was fitting isolation valves to the small toilet I renovated 🙂