Pictures: http://ift.tt/2rzjIWN stain had started some time ago and has been growing (I know, a bit late to taking care of this). The stain is on our Kitchen ceiling with the bathtub directly above it. Also, our bathroom stays too humid imo. So, I figured i'd open it up to identify a leak then get a plumber to fix it, but I'm no longer sure it's a leak.I could use some help in figuring out what direction to go so I can figure out what type of professional to call to fix it. Currently, my research has me leaning towards a sort of 'Ghosting', possibly related to a opening with the HVAC. I'm having a hard time finding some solid signs of a water leak, but I may just not know what i'm looking at.Any input or direction is appreciated. via /r/DIY http://ift.tt/2sEdbt9
