Christmas Surprise! Plumbing Question

[GSPHUNTER]

During my 35 + years as a pipe fitter I can tell you I saw that problem many times after we started using copper made outside the USA. Pin holes were a real problem.

 

[Amos Keeto]

Built my house in 2002.
Every inches of piping in walls and concrete is PEX!
I was skeptical at first, but I'm a firm convert now!