The ph levels are off in your well water; if it is eating through your copper piping imagine what it is doing to your health. CPVC only masks your problem, you'll have to change out all your faucets with copper components if you are going to do it. You need to have a test done on your water to see what can be done to fix your problem, and know how to address it. Switching piping is masking the issue, not going to the root of the evil. There are track records of copper piping that are STILL in homes built in the early 50's. Your problem is your water. Let us know the results of your testing.