Can PEX be used for potable water?
Yes, PEX is used for potable water supply pipe conforming to the latest national drinking water regulations globally including UK DWI, German DWVG, US NSF etc. In Europe harmonised water quality regulations are being developed under the guise of the EAS European Acceptance Scheme. The aim of this scheme is to subject all materials in contact with drinking water into a ‘level playing field’ of test requirements. However in the meantime national regulations continue to be applied. The plastics industry has implemented taste and odour and migration assessment testing for many years, but metals and cementitious products are not tested currently.
