As far as I know, there are only two ways of making connections when working with PEX: ProPEX expanding tools and metal ...

Second, PEX doesn't sweat under high humidity conditions, and it's also resistant to bursting, even if the lines freeze solid ...

In the best-case scenario, the PEX pipe is already perfectly sized for the fitting you're trying to attach it to, requiring nothing more than a crimp ring. However, as can frequently be the case ...