Pin Holes on Copper Pipes

[terracore]

When we bought our house 7 years ago and had an engineer inspect it he explained that the acidic rain would eventually cause pinholes in the copper pipes, which is one of the reasons why people put baking soda into their catchment water. They often go unnoticed because attics get so hot that the water evaporates as quickly as it comes out until the holes get large enough the leaking exceeds the evaporation. (We are on slab, of course not everybody has pipes in their attic, so YMMV). He also recommended replacing the pipes with plastic if we ever got holes because once we noticed leaks the problem was probably worse than what we saw. Maybe now that the vog is mostly gone, we will outlive our pipes.

If you're not on catchment your pinholes could be a different story.