Water rushing noise

[dulwich]

I havea rushing water noise coming from what appears to be the rad flow pipe in one area of the house feeding a radiator, I have turned the pump down to 2 but the noise is still there.
I had a new 3 port valve fitted a few weeks ago and the noise seemed to start around that time, the pump sounds ok, and all the rad valves seem to be working well..
any ideas, the pipes do run under exposed floor boards would this amplify the sound and what's my next checking order?


A great New Year to all the forum meisters

 

[Agile]

Did you bleed the rad?

Tony

 

[dulwich]

Hi Tony
Yeah I've bleed all the rads, and all flowing well.

 

[dulwich]

when i said all is flowing well..... that was just from bleeding the rads the noise is still there!!

 

[Agile]

Turn one valve off on every rad except for the noisy one then run the system for 10 minutes with the pump on "3".

If that does not solve it then repeat with other rads as the open one.

Tony

 

[dulwich]

Hi Tony
Thanks for getting back to me, just unsure what you mean by the last sentence, about repeating as with other rads...can I be a pain and ask you to explain

Cheers
John

 

[Agile]

Turn one valve off on every rad except for the noisy one then run the system for 10 minutes with the pump on "3".

If that does not work then ask again!

Tony