I'm having a problem when opening taps. I get a noise like a hammer drill drilling into a wall when the water is running. Its some kind of vibration. House is 8 yrs old modern pipes. I am suspecting it could be something to do with a pressure regulator valve that sits directly above the mains inlet. House has no water tanks all mains plus combi boiler. I have tried adjusting main inlet valve but still get it. It can be intermittent but of late seems to be happening more often than not.
Any ideas @plumbers
Any ideas @plumbers