I originally planned to go with traditional copper water pipes ... When you tighten down a crimp ring properly over PEX pipe and the fitting it’s joined to, it creates a water and airtight ...

copper (and even smaller with fittings). If you're tearing out copper and replacing it with the same size PEX pipe, the water ...

That's a bit of a problem if you're trying to attach a PEX pipe to certain fittings and the pipe doesn't fit. It may be flexible, but it's not so flexible that you can expand the opening with your ...