I suspect this is expansion it sounds like an expansion noise that from
zero accelerates as water runs out then deaccelerates as it cools, noise
stops after a couple of minutes. Thats what I think it is.
It is the pipes in an upstairs bathroom If I have shower with the bath
plug in there is no noise but when I pull the plug out the noise starts
as this is hot water from the shower I suspect expansion noises, if I
half fill the bath with cold water and drain there is no noise.
So when I get the enthusiasm to have a look under the bath what should I
be looking for and how to fix the noise. If its an expansion noise can
it be fixed? Never had thisin my last house and the problem here is I
can hear it from my bedroom which is now beginning to annoy me.

ss wrote:

I suspect this is expansion it sounds like an expansion noise that from
zero accelerates as water runs out then deaccelerates as it cools, noise
stops after a couple of minutes. Thats what I think it is.
It is the pipes in an upstairs bathroom If I have shower with the bath
plug in there is no noise but when I pull the plug out the noise starts
as this is hot water from the shower I suspect expansion noises, if I
half fill the bath with cold water and drain there is no noise.
So when I get the enthusiasm to have a look under the bath what should I
be looking for and how to fix the noise.

If the pipe is tight onto some woodwork, try to work some sort of wading
(old style underlay, rockwool, strip from an old towel) between pipe and
wood.

"Andy Burns" wrote in message
o.uk...
ss wrote:

I suspect this is expansion it sounds like an expansion noise that from
zero accelerates as water runs out then deaccelerates as it cools, noise
stops after a couple of minutes. Thats what I think it is.
It is the pipes in an upstairs bathroom If I have shower with the bath
plug in there is no noise but when I pull the plug out the noise starts
as this is hot water from the shower I suspect expansion noises, if I
half fill the bath with cold water and drain there is no noise.
So when I get the enthusiasm to have a look under the bath what should I
be looking for and how to fix the noise.

If the pipe is tight onto some woodwork, try to work some sort of wading
(old style underlay, rockwool, strip from an old towel) between pipe and
wood.

Or spray with WD40

On Mon, 29 Jul 2013 20:06:59 +0100, Andy Burns wrote:

If the pipe is tight onto some woodwork, try to work some sort of wading
(old style underlay, rockwool, strip from an old towel) between pipe and
wood.

Or sprinkle it with talcum powder, better still move the pipe so it's
clear or remove some of the wood. Constant movement against something
will wear through the pipe eventually.

--
Cheers
Dave.

On 29/07/2013 20:20, Dave Liquorice wrote:
On Mon, 29 Jul 2013 20:06:59 +0100, Andy Burns wrote:

If the pipe is tight onto some woodwork, try to work some sort of wading
(old style underlay, rockwool, strip from an old towel) between pipe and
wood.

Or sprinkle it with talcum powder, better still move the pipe so it's
clear or remove some of the wood. Constant movement against something
will wear through the pipe eventually.

Thanks guys, its a 2 minute job to take the bath panel off and spray
with WD40 whatever I can see, if that helps I have then found the
problem and can sort it properly later.

On 29/07/2013 22:08, ss wrote:
On 29/07/2013 20:20, Dave Liquorice wrote:
On Mon, 29 Jul 2013 20:06:59 +0100, Andy Burns wrote:

If the pipe is tight onto some woodwork, try to work some sort of wading
(old style underlay, rockwool, strip from an old towel) between pipe and
wood.

Or sprinkle it with talcum powder, better still move the pipe so it's
clear or remove some of the wood. Constant movement against something
will wear through the pipe eventually.

Thanks guys, its a 2 minute job to take the bath panel off and spray
with WD40 whatever I can see, if that helps I have then found the
problem and can sort it properly later.

Took the bath panel off and there is no contact with wood or anything
else the waste goes directly (via u bend) into the downpipe. I sprayed
it all with wd40 anyhow and will see if it makes any change.