Hi, I am living in a Mid floor Condo, the affected area is the wall near my 2nd toilet. I am facing some issue where paint started to bubble and in certain areas Mold started to grow, at first i thought it was a water leakage, but when I look at the water bills it seems fine( RM 12- 15) per month. When I touch the walls, it seems very powdery even the steel door frame started to rust a bit from below. FYI There is no pipes in the Left wall.

My WC Drain Pipe connection when I flush some water will splash out from above the connection will that be the problem? But it is kinda a far away from the affected area.



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THESE ARE THE AREA AFFECTED


THIS IS THE WALL IN THE OTHER ROOM ON THE LEFT


THIS IS THE WALL IN THE STORE ROOM ON THE RIGHT


THIS IS THE STORE ROOM


THIS IS THE OTHER SIDE OF THE WALL OF THE STORE ROOM THAT I HACKED UNDER THE SINK CABINET



What do you think ?
What should I do ?

This post has been edited by gordon12334545: Jul 21 2020, 10:24 PM

GG man if that is the case, Now I am kinda broke to do that.

I haven't try PU injection yet

I've fix the WC issue but I am not sure how to know if it was fixed, when i touch the corner of the store room wall, it smells kinda musty, by the way that bathroom was rarely use.