Banging Clanging Noise from near Boiler/Pipes near it!!

[ShaunCorbs]

It’s common when you have high pressure and a fast closing tap

It will be fine if you learn to close it slow or have a shock arrestor fitted below the boiler

 

[MancAnt]

It’s common when you have high pressure and a fast closing tap

It will be fine if you learn to close it slow or have a shock arrestor fitted below the boiler

 

[MancAnt]

Sorry for not getting back to you sooner Shaun...... is it dangerous? Like you say if you turn the kitchen mixer tap off slowly or it's just cold water feed and you turn on and off you don't get the banging/clatter noise from the pipes below the boiler fitment?

 

[Ric2013]

Dangerous? No, but the transient pressure surges through the pipework won't be good for them in the long term if they are rattling around.

By the way, throttling down your stopcock will limit maximum flow and not maximum pressure. If you want to reduce your pressure, fit a pressure regulating valve.

 

[MancAnt]

Dangerous? No, but the transient pressure surges through the pipework won't be good for them in the long term if they are rattling around.

By the way, throttling down your stopcock will limit maximum flow and not maximum pressure. If you want to reduce your pressure, fit a pressure regulating valve.

Thanks for the response Ric2013. Having spoke to our plumber on another issue we had (float valve issue now sorted) he stated that ideally you should always turn your stopcock open fully and then turn it back at least a half turn so it doesn't seize. So currently is left at just that .
It is really strange how we didn't have this issue until a few months ago when United Utilities were working in our area and the pressure was low ( they didn't admit it at first) and they initially told me to turn off the mains water at the stopcock and then turn on all taps upstairs,then downstairs to flush my system of any trapped air. Then once all empty to turn on the taps from upstairs to downstairs (bathroom taps then kitchen and outside tap) to flush an air out of the system possibly causing the low pressure .
It is literally when we turn off our Blanco mixer tap when running hot water in the kitchen only...