DIYbanter - View Single Post

wrote:

There is a banging/knocking noise coming from my hot and cold pipes
when absolutely nothing is turned on.

Only experience I've had in this area was a bathroom tap. I fitted a
pressure regulator and a section of flexible pipe. Don't know which one
cured it, but it stopped.

I've installed a number of high pressure water pipe lines and as standard we
would put in a 1 metre flexible every 50 metres or so to avoid water
hammer - these were 200bar @ 30 litres/min.

Dave