According to the Plastics Pipe Institute, the updated AWWA C904-22 standard contains information for the proper installation of underground PEX potable water service lines that is important and helpful especially with the growing need for replacing lead pipes.Named "Crosslinked Polyethylene Pressure Tube, 1/2 Inch Through 3 Inch for Water Service," it is the ANSI-approved standard for PEX tubing intended to deliver potable water into homes and buildings. PPI is the nonprofit North American trade association representing the plastic pipe industry.“The Bipartisan Infrastructure Law contains $15 billion for lead service line replacement, and PEX is the ideal piping material for that
