This video from Charlotte Pipe shows a sound test of various DWV plumbing systems. Materials tested are cast iron soil pipe, solid wall PVC and foam core PVC, with and without insulation products.

Polyvinyl chloride (PVC), a multipurpose thermoplastic, is used for construction, floor coverings, packaging, bottles, coatings and tubing. PVC can be hard or flexible, based on the quantity of ...

Household plumbing systems use PEX for pipes to supply water and carry away sewage. The term PEX stands for "crosslinked polyethylene." PEX piping is manufactured by melting high-density polyethylene ...