CPVC plumbing systems offer an inherent immunity from chlorinated drinking water. The chlorine molecules represented by the two “Cs” in CPVC create a protective barrier against the chlorine-based disinfectants used in U.S. water treatment processes. The unique chemistry of CPVC makes it the material immune to corrosion or degradation caused by chlorinated water.

As a result, virtually every CPVC failure can be traced to either installation errors or exposure to incompatible chemicals. Unlike chlorine degradation, these failures are largely controllable and can be minimized by taking some simple precautions.