I'm not a plumber, that's what someone told me once a long time ago. But googling some more, systemic pinhole leakage can also depend on several factors like wa

I'm not a plumber, that's what someone told me once a long time ago. But googling some more, systemic pinhole leakage can also depend on several factors like water cleanliness and pH, with some counties finding grounding doesn't cause pinholing and others finding it does. The subject may be more complicated than my single sentence can capture.