Good chance the original work was done with a bad batch of pipe, or worse, some contractor used Type M (thinwall) pipe.

Another interesting thing I learned about just yesterday! Type M vs. Type L.

Apparently it also depends on the ph of the water...

https://www.familyhandyman.com/article/copper-pipe-types/

Also your AHJ and plumber. I want to say in NY we were forbidden to use Type M for anything other than hydronic heating.

I would argue that a good plumber would recommend PEX over piping a house in Type M.

Well I hope you plan to move/sell, in my opinion PEX will be banned in 20 years and you'll have a hard time selling without remediation. PEX is absolutely loaded with carcinogenic compounds and endocrine disruptors that actively leech into your water, especially if you have a hot water recirculation system (standard/code on new homes)

>After the tenth pin hole leak and lots of shark bite fixes, I am not fond of copper.

It's my understanding that the vast majority of pinhole copper leaks are caused by poor solder jobs. Solder gets inside the pipe and causes a vortex that can eat through the copper.

The solution to this is to use solderless copper ProPress fittings for everything. Not only is this much more clean and faster to install, but the inside of the pipe is flush/smooth with the fitting.

> Phthalate exposure from drinking water via cPVC or PEX is low when compared to other dietary sources. Nonetheless, a shift from cPVC to PEX pipes in households would decrease potential exposure to phthalates.[1]

Almost everything I drink out of is lined with plastic. Milk or juice containers, water bottles, and most reusable on the go cups are made of plastics or have a plastic liner.

[1] https://hero.epa.gov/hero/index.cfm/reference/details/refere...

food packaging plastics are short lived (time from packaging to consumption is <2 years) and they are not exposed to sun nor heat. They are safe.

But long-term plastics in tubing are exposed continuously to heat (hot water) and will start falling apart and leech chemicals, because they are exposed over long-term