For some reason the water tends to eat copper here. Any house thats 15 yrs old or more I guarantee will need a repipe of the whole house. Cape Coral was studied by national firms to try to pinpoint why the problem is so common. I believe it's a mix of the water treatment and the soil that does it.
The only time I heard of it eating out was if the water was acidic but with everything added to the water and soil anything is possible.