when did they start using pvc for plumbing
Plumbing Plastic pipe is in wide use for domestic water supply and drain-waste-vent (DWV) pipe. Principal types include: Polyvinyl chloride (PVC) was produced experimentally in the 19th century but did not become practical to manufacture until 1926, when Waldo Semon of BF Goodrich Co. developed a method to plasticize PVC, making it easier to process. PVC pipe began to be manufactured in the 1940s and was in wide use for Drain-Waste-Vent piping during the reconstruction of Germany and Japan following WWII. In the 1950s, plastics manufacturers in Western Europe and Japan began producing acrylonitrile butadiene styrene (ABS) pipe. The method for producing cross-linked polyethylene (PEX) was also developed in the 1950s. Plastic supply pipes have become increasingly common, with a variety of materials and fittings employed.
History of the petroleum industry in the United States Other innovations in the Caddo-Pine Island Field included the first over-water oil platform, which was constructed in the field on Caddo Lake in 1910. In that same year, a major oil pipeline was constructed from Caddo-Pine Island Field to a refinery built and operated by Standard Oil Company of Louisiana in Baton Rouge, Louisiana. The refinery continues to operate today.