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 (PVC) and high-density polyethylene water reticulation and drainage pipe and fitting systems manufacturer DPI Plastics warns that the South African market needs to be aware of the ...