Q: I need to install some new water-supply lines in my home. I currently have copper. I’m intrigued by the plastic PEX material, but it seems too good to be true. Using PEX, I would only have a joint ...

The course is based on requirements of the updated industry standard AWWA C904-22 Crosslinked Polyethylene (PEX) Pressure Tube, 1/2 Inch Through 3 Inch for Water Service, the ANSI-approved standard ...