On Wed, 02 Nov 2016 15:50:03 -0500, wrote:

Here are several of many web links that say PEX and other plastic pipes
are not healthy, impart a foul taste to water, and has other issues. At
the same time, it appears that the actual risks are not exactly known.
Either way, it appears that copper pipe is a much better choice, as far
as health, and water taste.
Fine until your water pinholes the copper pipe.