Foreword
This webpage contains Frequently Asked Questions (FAQs) about polypropylene pressure piping systems, with answers. This information is offered in good faith and believed to be accurate at the time of its publication. Additional information may be needed in some areas, especially with regards to unusual or special applications. Consult the manufacturer or material supplier for more detailed information. A list of member manufacturers is available on the PPI website (links below). PPI does not endorse the proprietary products or processes of any manufacturer and assumes no responsibility for compliance with applicable laws and regulations.