Deletion of Plastic pressure pipe systems

Comment: unless this gets sourced before the close of this AFD.  I agree with Transhumanist that this ''looks'' factual and useful, but it isn't |verifiable at this point.  Furthermore, this text is largely a carryover from article versions that were, as far as I can tell, written by a now blocked SPA sockpuppeteer who apparently fabricated sources; even  I have a hard time taking anything in this article strictly on face value
Stance: delete
Cited policy: Wikipedia:Verifiability (WP:V||WP:AGF)