DIY Doctor UK DIY Forums

we have just started getting a bad knocking from the cold water pipe when we turn the taps off.This just seems to go up and down the pipes forever like a bad set of drums.We are fed off of a mains supply in a flat so have no tank involved.is this water hammer ?anyone got any advice?thanks (its really stressing us out!)

Hi arriell,

When you say 'just started' I assume you mean this has never happened before.

If you are mains fed then there is a likelihood that the water undertaker (supplier) may have adjusted the pressure which would have had a knock on affect with your pressure,

Turn your stopcock (should be under the kitchen sink?) down ½ a turn and see if there is a difference.

Phone your water undertaker and ask then if there has been a change in the pressure in your area.

Regards

Skids

hi skids thanks for your reply,we have just noticed our combi boiler is slightly leaking....could this possibly be the cause or just a coincidence?i presume if water can get out air can get in?sorry if i sound silly but just clutching at straws!