How do PEX fittings work?
A clamp-ring connection connects PEX to existing metal pipe.
PEX tubing is crimped onto the male end, and the female end is either soldered or threaded onto existing pipe.
In-line fittings are used to connect separate lengths of PEX tubing, to create a branch line, or to add a valve.
Why is PEX plumbing bad?
Piping fails when the pipes are exposed to chlorine that is within the water, exposure to direct sunlight before its installation. Furthermore PEX pipe is vulnerable when it comes in contact with such solutions as petroleum products and oxygen. It can leach toxic chemicals from pipe material also.
Why is PEX banned in California?
PEX Banned From California ’01 Code. Uponor Wirsbo said its PEX pipe was introduced in California in 1990 and that the product helps solve problems in areas with aggressive soil conditions that copper pipe cannot solve.
Where is PEX not allowed?
Pex not being allowed in commercial or industrial buildings, and thus not in residential buildings deemed “commercial industrial”.