High pitch tone by stop cock

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14 Apr 2021
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Hello we noticed on the middle of the night a continuous noise that seems to be coming from the stop cock. It's hard to describe as it's not a screech or whistle but somewhere in between. I've tried turning the stop cock off and running some taps and isolating the taps which reduced the noise down considerably and in one case completely but the noise comes back after a short time and back loudly when the stop cock is turned back on. Any ideas?
 
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It’s likely a worn ball valve in the cold water storage tank in the loft.

Blup
 
If the noise is continuous/ never stops, then as a above - it must be a leak somewhere and needs to be dealt with urgently.
 
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Little update. Once daylight was reasonable I went out to the meter in the street. It was like a jacuzzi. So I turned that off and the noise stopped and rang the water supplier. I should have done that in the night. I'm hoping the fault is the other side of the meter.
Thanks for your replies.
 
Like a jacuzzi? Was it bubbling then? Sounds like water supply side, but could be on your side of the boundary.
 
Possible though .... happened at our last house -some sort of part on the water co.s meter had split. noise travels through the pipes.
That's what happened. Apparently the meter is plastic and they don't like it up em.
So not too bad. Only trouble was I've been up since 4 o'clock ish and was still late for work.
 
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