Plumbing leak

[Yorky1]

I had a leak which caused the paint to flake off an internal wall - see here for the history:

http://www.askaboutmoney.com/showthread.php?t=66279

I now have the same problem in an adjacent wall to the original leak. The paint is bubbling off the wall on both sides but this time there appears to be a mark at the top of the wall also. Could the mositure travel up to ceiling level?

I had a blocked shower drain recently and used a mini drain rod to clear it - could this have dislodged something? I've checked the shower and everything seems to be in order and the ceiling mark beneath it is not directly under the shower drain. Here are some photographs:

http://i238.photobucket.com/albums/ff250/Kilnadrain/P1040422.jpg (ceiling)
http://i238.photobucket.com/albums/ff250/Kilnadrain/P1040423.jpg (ceiling)
http://i238.photobucket.com/albums/ff250/Kilnadrain/P1040424.jpg (one side of wall)
http://i238.photobucket.com/albums/ff250/Kilnadrain/P1040425.jpg (other side of wall)
http://i238.photobucket.com/albums/ff250/Kilnadrain/P1040426.jpg

Is there a non-invasive leak detection test that can be carried out?

It seems strange that the affected wall is directly opposite the original wall which was affected by the previous leak in the manifold or perhaps that was not what was causing it at all?

There is a radiator on each side of the wall.

Any advice would be appreciated.

 

[Roadyz]

Is there a non-invasive leak detection test that can be carried out?


/

i once saw a 40mm ringseal fitting get knocked of using a mini drain rod,

the only way to test the soil is to do a airt test using a u-guage

http://www.ciao.co.uk/Monument_Air_Testing_U_Gauge_Kit__6557413