Results from the Kiwa water assessment confirms PPR has the greatest potential for biofilm formation, compared to other piping materials, including CPVC. Due to chemical makeup of CPVC and the smoothness of the pipe surface, it’s much harder for harmful bacteria to latch on to it.

Is CPVC toxic?

CPVC releases toxic smoke containing cancer-causing dioxins when burned in residential fires, plastic incinerators and landfill fires. Dioxin is considered one the most toxic chemicals known to science.

Is CPVC banned?

CPVC has been a nationally accepted material since 1982, but California has only permitted its use on a limited basis since 2001. … CPVC piping systems have been approved for use in areas in California where water testing indicated that copper would fail prematurely.