Rising damp along bathroom wall or another source?

[DaveHhh1]

Hi all,

I have had a few leaks in my bathroom last year but they were rectified. The problem I now face is what looks like rising damp in a spot along the bathroom wall first image.

i pulled bath panel off and its dry underneath. I took the skirting off here and its really damp see second image.

I am attaching a pic from the outside roughly where the area is. Is it the paving which has been there since the 80s with no issue? DPC failed? Drain. No idea but I would like to get this sorted.

Any advice much appreciated.

 

[foxhole]

Penetrating damp , drain may overflow if blocked , you also appear to have a cable thru the wall at very low level which if not sealed will let in water .

 

[DaveHhh1]

Thanks for that. Gonna check one more thing I noticed the bath waste external pipe is quite old. My ptrap was replaced but this pipe remained it could be that on letting out of the water there's a leak in the waste pipe. Just thinking it's worth double checking letting the water out with the panel off to see as the highest point of the damp is right next to the bath. Will let you know. Then I can address the impending disaster on the external wall.

 

[DaveHhh1]

Ah so the pipe isn't leaking sadly, but this area in the pic is v wet if I put my finger around here and behind the plaster it's wet. It's far away from the damp up the walls though. So must be external wall has somewhere failing after all these years