The diaphragm in the valve has hardened up and is resonating as the valve closes. Get a new diaphragm and the problem will go away. Probably cost less than £1.
The diaphragm in the valve has hardened up and is resonating as the valve closes. Get a new diaphragm and the problem will go away. Probably cost less than £1.
It'll cost you less than that if you ask IronNaz to do it Mind you, if he can't fix it then he'll charge you a darned sight more and it still won't be fixed
It may be worthwhile turning the water off, dismantling the valve (you do this in-situ without removing it from the cistern) and taking the diaphragm with you to a plumbers merchant
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