Compressed air or inert gases should never be used for pressure testing plastic plumbing systems. These systems should be tested by hydrostatic means.

The manufacturer should be contacted if there is any doubt as to how a specific system or material should be tested.

NOTE:
This PPFA User Bulletin is designed to provide guidance in achieving the efficient, effective and informed use of plastic pipe. The suggestions and advice contained in this Bulletin are offered merely to provide plastic pipe users with a general frame of reference. Because specific situations may, and often do require special treatment, the suggestions and advice are obviously not universally applicable. Therefore, the user should carefully assess the requirements of his specific situation before making practical application of anything contained in this publication.