Damp patch on wall

joebob

Woke up this morning to find a damp patch on the living room wall. Never had anything there before. I think that the waste pipe from the bathroom goes vertically down the wall behind behind the boxed in area .Any thoughts ?

Mark_d

Maybe one of the kids threw some water on the wall?  Maybe water splashed against the outside of the wall when the neighbour was washing his car?

stuart45

The pipe could be leaking.

joebob

Hope this helps

joebob

stuart45 said:

The pipe could be leaking.

Wouldn't the damp patch be at the bottom or top though?  

FreeBear

Mark_d said: Maybe water splashed against the outside of the wall when the neighbour was washing his car?

You're going to need a lot of water over a sustained period of time for damp to appear inside...

Judging by the photos, I'd go for leaking pipe. Going to need to cut in to the boxing to find the source though... I'd suggest starting at the top under the bath & in the bathroom and work your way down.

Mark_d

FreeBear said:

Mark_d said: Maybe water splashed against the outside of the wall when the neighbour was washing his car?

You're going to need a lot of water over a sustained period of time for damp to appear inside...

Judging by the photos, I'd go for leaking pipe. Going to need to cut in to the boxing to find the source though... I'd suggest starting at the top under the bath & in the bathroom and work your way down.

Yes you would need a lot of water.  My ideas were based on the information initially provided.

Looking at the photos it does look like it's a burst pipe/joint.  Though the location of the damp patch is not what you'd typically expect from a leaking pipe

joebob

Had a look under bath no leaks there. Will have a problem looking round toilet waste as it's built in.

joebob

There is a boxed area directly underneath bathroom. Would that be some sort of piping that could be a problem? But there are no damp patches there or anywhere else. 

FreeBear

My guess is it is leaking from a joint, and the water is running down the wall before hitting a bracket. From there, tacking across to the plasterboard and coming through. I'm afraid where ever the leak is, you will have to knock holes in stuff. Start at the top of the boxing above the stain.

Kiran

The boxing could well be lagged/wrapped in insulation for acoustic reasons. It may be that the water is tracking along or down the pipe and the point where the damp patch is presenting is where the saturated insulation is touching the boxing. As mentioned above, it is quite a big damp patch to suddenly appear so id guess that it is push fit waste pipe and one of the joints has been dislodged, possibly on the boss where the smaller waste pipe joins the stack