We seem to have a bit of a problem with our main cold water pipe feeding the
tank in the attic. Whenever we run the cold water, including flushing the
toilet and running a shower, the pipe vibrates and makes a banging noise of
varying degrees.

With the exception of the kitchen tap (which also feeds the washing machine
and garden tap) there are no other "spurs" off this pipe before it reaches
the main storage tank in the attic.

I can only assume that somehow air has got into this pipe (we did fit a new
tap outside) but am open to other options.

My question is, how do I get the air out/fix the noise and vibration?

Thanks
Greg

"greg leece" wrote in message
...
We seem to have a bit of a problem with our main cold water pipe feeding
the
tank in the attic. Whenever we run the cold water, including flushing the
toilet and running a shower, the pipe vibrates and makes a banging noise
of
varying degrees.

Ensure that the pipe is clipped down often enough and if so consider
replacing the float valve.

On Sat, 26 Nov 2005 18:42:05 -0000, shaun wrote:

Ensure that the pipe is clipped down often enough and if so consider
replacing the float valve.

Freeing off any clips a bit thus allowing the pipe to move a little
but still suported is also a means of stopping these resonances. I
tried the tighten/fix everything securley route but that just altered
the frequency and onset point of the resonance. Making everything
slack cured it...

--
Cheers
Dave. pam is missing e-mail

greg leece wrote:

My question is, how do I fix the noise and vibration?

Fit one of these in the pipe somewhere 86348 Flexible Pipe Connector 15mm x
15mm http://www.toolstation.com/shop/Plum...ors/d20/sd2807

Dave

"david lang" wrote in message
k...
greg leece wrote:

My question is, how do I fix the noise and vibration?

Fit one of these in the pipe somewhere 86348 Flexible Pipe Connector 15mm
x
15mm
http://www.toolstation.com/shop/Plum...ors/d20/sd2807

You eliminate the problem at source, clipping pipes and replace ball valve
in the tank.

Dave Liquorice wrote:
On Sat, 26 Nov 2005 18:42:05 -0000, shaun wrote:


Ensure that the pipe is clipped down often enough and if so consider
replacing the float valve.


Freeing off any clips a bit thus allowing the pipe to move a little
but still suported is also a means of stopping these resonances. I
tried the tighten/fix everything securley route but that just altered
the frequency and onset point of the resonance. Making everything
slack cured it...


Also adding insulation to the pipes touching a wall or similarly
immoveable object helps.

Chris

--
Spamtrap in use
To email replace 127.0.0.1 with blueyonder dot co dot uk

"Chris Hodges" wrote in message
.uk...
Dave Liquorice wrote:
On Sat, 26 Nov 2005 18:42:05 -0000, shaun wrote:


Ensure that the pipe is clipped down often enough and if so consider
replacing the float valve.


Freeing off any clips a bit thus allowing the pipe to move a little but
still suported is also a means of stopping these resonances. I tried the
tighten/fix everything securley route but that just altered the frequency
and onset point of the resonance. Making everything slack cured it...


Also adding insulation to the pipes touching a wall or similarly
immoveable object helps.

Chris

--
Spamtrap in use
To email replace 127.0.0.1 with blueyonder dot co dot uk

Have you left a hose attached to the outside tap? If so (and the tap is on)
it acts as a superb hydraulic accumulator and will create hammer - likewise
washing machine hoses.

John