DUNBAR
The piping you are describing has had many problems across the United States but depending on what state you live in and how much chlorine is being ran through your system greatly determines what might be either a good move or a preventative one in keeping problems from creeping up down the road.
I know of someone who lives in Idaho that has absolutely no problems with that piping, same as someone who has it down in Florida, but ask someone in Texas and the rest of the states of how many millions of dollars it has cost homeowners…it changes the school of thinking real quick. 
