D
Dom38
HI, WAS WOUNDERING IF ANY ONE COULD HELP ME , I HAVE A LOUD HIGH PITCHED SOUND COMING FROM MY HOT WATER SUPPLY PIPE FROM THE HOT WATER CYLINDER , IT IS NOT CONSTANT ! WHEN YOU TOUCH THE PIPE YOU CAN FEEL IT VIBRATE . THIS SOUND IS HAPPENING WHEN THE TAPS ARE OF AND THE BOILER IS NOT FIRED UP ALOUGTH THE CYLINDER AND PIPES ARE HOT .:teeth_smile: