Found house plumbed with PB and it’s on well water.
Some allege that one reason PB breaks down is exposure
to chlorine found in municipal water.
Well water doesn’t have chlorine of course.
I can’t find any hard evidence that there is a link between PB and chlorine, seems there are many alleged reasons it can fail.
House is from 1984 btw.
If anyone has any hard sources I’d love to see them, thanks!