Polybutylene plumbing is a type of plastic resin water pipe that was a cheap and easy alternative to copper and was manufactured from 1975 to 1995. Polybutylene was banned in 1995 due to failure of pipes in the form of leaking and rupturing. Polybutylene is generally identified by its gray color with blue lettering usually stamped with “PB2110” and should be evaluated for replacement by a qualified plumbing contractor.
What is Polybutylene plumbing and why is it a problem?