Foghorn Noise when using hot water

YMul · 10 January 2019 at 10:42PM

Hi
Please can i get some advice.

When i switch the hot water tap on from upstairs or downstairs in my house there is a loud foghorn noise and i have checked in the loft and it seems to be coming from the cold water tank. When i lift the ball valve to stop the water coming in the noise stops immediately or it stops if i switch the stop tap off completely. The noise when i switch the tap on will last for around a minute and then stop.
What could be the cause and what type of ball valve is needed for the cold water tank, would it be part 1 or part 2?
Thanks in advance for your help.
Thanks

Lorian · 10 January 2019 at 10:56PM

you can just replace the diaphragm washer in the cold tank ball valve for a couple of quid or replace the whole valve for not much more:

https://www.screwfix.com/p/pegler-float-valve-part-2/27627

Whitterbod · 11 January 2019 at 8:02PM

also get a new float for the valve as they go brittle with age

owen_money · 11 January 2019 at 8:34PM

Do you live by the sea? Do you hear it only on foggy days?

tonyd123 · 11 January 2019 at 9:04PM

i would go for a part 1 ball valve ...just saying,

southcoastrgi · 13 January 2019 at 5:15PM

tonyd123 wrote: »

i would go for a part 1 ball valve ...just saying,

I wouldn't seeing as it's not the right part

Foghorn Noise when using hot water

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