Where it was manufactured?
How was the piping transported?
How was the piping stored?
What was the original installation process?
Was is it used in a well water supply system or a high chlorine municipal setting?
Higher chlorine content
Considering all the factors mentioned, it is almost impossible to determine when the Poly B piping system will deteriorate or fail. The only signal that the entire piping system is up for failure is the first leak. This could happen at any part in the system along Poly B piping.
The fastest rate of failure recorded was within the first 12 months, while the longest time the piping lasted was 34 years. There is no way to determine how soon or long it will take the piping to fail. This rate of uncertainty makes Poly B piping a gamble.