Hi, I wonder if anyone can help.
My parents have a PRV fitted to the incoming mains in their kitchen, which for months has made an intermittent whirring noise which is driving them crazy.
Today I have worked out that the noise happens when the ballcock in cold water tank in the loft is closing. When the noise occurs, if I lift the ballcock, it stops.
So I'm left wondering what might stop the noise. The PRV makes a very quiet noise whenever there is a flow; could it be that a resonance in the pipe feeding the cold water tank makes this noise louder? And if so, might an expansion vessel put somewhere along this pipe stop the problem? Or does anyone have any other suggestions?
Many thanks,
Andy
My parents have a PRV fitted to the incoming mains in their kitchen, which for months has made an intermittent whirring noise which is driving them crazy.
Today I have worked out that the noise happens when the ballcock in cold water tank in the loft is closing. When the noise occurs, if I lift the ballcock, it stops.
So I'm left wondering what might stop the noise. The PRV makes a very quiet noise whenever there is a flow; could it be that a resonance in the pipe feeding the cold water tank makes this noise louder? And if so, might an expansion vessel put somewhere along this pipe stop the problem? Or does anyone have any other suggestions?
Many thanks,
Andy