It seems it was only yesterday that Canada celebrated its 100th anniversary as a country and was host to the World’s Fair in Montréal, Quebec. It wasn’t yesterday though. The year was 1967, and more than a quarter century has since passed.

Coincident with Expo 67 was the first 450 mm (18″) installation of PVC pipe. The Shawinigan Petrochemicals Plant (today known as Petromont) in Varennes, Quebec was the first in North America to use 450 mm (18″) diameter PVC to supply water from the St. Lawrence River.