creaking waste pipe

[dg9]

i've recently moved into a new build flat - the creaking from, what i presume is the waste pipe behind a wall (albeit with an inspection hatch there) in the kitchen is driving me around the bend. (the bathroom one is the same)

Untitled

• dg9
• 30 Dec 2010
• 1

at first i thought it was a drip but the insulation foam feels dry...i suspect it just creaks when water is coming down the pipe

i know it's a long shot - but does any one have any ideas on any possible remedies? some more insulation perhaps or strapping it to the wall myself somehow?

Any thoughts?
Thanks

 

[slapper]

Iys expansion and contraction of the pipework,buy some ear muffs

 

[muggles]

May be heating pipework in contact with timber, rubbing as it expands and contracts

 

[doitall]

The pipe is touching wood, plasterboard, etc as clicks as it expands and contracts, ease the pipe and it should be fine.

 

[dg9]

thanks

one difficulty is with it being a communal pipe so there's little i can really do to it ...

... but i've had a little play with the pipe when it's 'creaking' - and if pressure is put on it (in pretty much any direction) it usually stops...

would anyone recommend just trying to pack extra stuff between the wall and the insulation / pipe or any extra strap to the wall or ...

any thoughts on that?

@ doitall - what do you mean by 'ease it'? (treat me like a muppet) thanks
thanks

 

[doitall]

You need to get the pipe away from anything it's touching.

Two main problems is the boxing in is too tight, or where the pipe passes through the ceiling.

You can slide a thick plastic between the pipe and wherever it touching as well.

When you press on the pipe you are moving it away from the boxing in frame by the sound of it, so should be close to where you're pressing.

 

[digdilem]

I'm going to suggest something different to the above. I could be wrong, full refund of my advice if so...

Clamp the bugger tight. Big U clamps onto the wall wherever you can get access. Stop the movement.

I don't think it's thermal, I think it's more likely to be the weight of water physically moving an insufficiently supported pipe around when it gets filled with water.

 

[xr4x4]

maybe its hot/warm water expanding contracting the pipe, maybe if the pipe is in a cold space.

ours ticks if you run the hot tap.

 

[JohnD]

it might be creaking against a pipe clip.