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why does my basement cold water pipe only rattle during cold weather?

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why does my basement cold water pipe only rattle during cold weather? Joe 11-06-2007
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Posted by franz frippl on November 6, 2007, 1:01 pm
On Tue, 06 Nov 2007 14:07:25 +0000, Joe wrote:

> I thought I had fixed this problem last winter but now it's back again.
> When water is turned off upstairs the cold water pipe rattles against
> the drywall. It started happening the same time last year. It seems that
> when the outside temp falls down to the 40s and 30s is the only time it
> happens. Does the ground being colder have something to do with the
> water being heavier?

I once owned a house from the 20's where an old Saturday Evening Post was
wedged between pipes and joists to silence things a bit.


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Posted by hallerb@aol.com on November 6, 2007, 6:58 pm
> On Tue, 06 Nov 2007 14:07:25 +0000, Joe wrote:
> > I thought I had fixed this problem last winter but now it's back again.
> > When water is turned off upstairs the cold water pipe rattles against
> > the drywall. It started happening the same time last year. It seems that
> > when the outside temp falls down to the 40s and 30s is the only time it
> > happens. Does the ground being colder have something to do with the
> > water being heavier?
>
> I once owned a house from the 20's where an old Saturday Evening Post was
> wedged between pipes and joists to silence things a bit.

if you have basement access try holding on there while someone tries
to create noise.

may be possible to push on lines to stop noise, most easily tried by
using your hands and pushing pulling etc on lines


Posted by HeyBub on November 6, 2007, 9:26 pm
Joe wrote:
> I thought I had fixed this problem last winter but now it's back
> again. When water is turned off upstairs the cold water pipe rattles
> against the drywall. It started happening the same time last year. It
> seems that when the outside temp falls down to the 40s and 30s is the
> only time it happens. Does the ground being colder have something to
> do with the water being heavier?

It's called "shivering," and is a normal physiological reaction to extreme
cold.



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