We moved into this house that has a 3 car garage. The ceiling has always been bumpy in some areas: to me it looks like a perfect outline of water pipes from the apartment above the garage. I know at one point the builder told me the water line to the fridge leaked and so did the diverter in the shower (Shocked at how many things have leaked in a brand new house) but he is not aware of any leaks into the garage. He blames this ceiling look on it not being finished to the same standard as the interior. I did have the garage painted and the painters didn’t seem to be able to make the ceiling look any better. Does this look like water leaking (current or prior)? Bad sheet rock job? Settlement issue? (We have interior cracking and nails popped in the apartment) Any ideas? Thanks!