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 ...
Polyvinyl chloride, better known as PVC, is a versatile material that’s used in a wide variety of piping applications. It can be as thin and flexible as a wall covering or as rigid as an industrial ...