From the mid-1970s through the late 1990s, polybutylene pipes were installed in 6-10 million US homes. They were inexpensive and easy to install--but homeowners and plumbing professionals have discovered one serious flaw: Over time, oxidation, and exposure to chlorine in the water supply causes the pipes to swell and crack, leading to widespread flood damage throughout the home, usually without any warning.
- white or gray in color
- having a dull or matte finish
- approximately 1/2" to 1" in diameter
- often stamped with "PB2110"