The other morning I came into the kitchen and found it covered in water dripping from the ceiling. After removing the ceiling I found a pinhole leak in the 3/4" copper pipe. I shut off the water and started to think about how to fix it (in a totally inaccessable location). About a day latter - while still thinking- I new leak ocurred in an totally different location of the house. Same type of leak.
I removed the entire run of piped in the second location (easily accessabe and looked at it). A small pinhole - no bulging etc. The plumbing has in for 25 years the wall thickeness looked good.
Has anyone run into to this before?