05/30/2026
Did you know?
Poly B is generally uninsurable by many standard home insurance providers due to the high risk of catastrophic failure, this is a huge risk when purchasing an older home.
Over time, oxidants and chlorine present in municipal water supplies degrades the plastic resin from the inside out. This causes the pipes to become brittle and resulted in devastating cracks, leaks, and sudden bursts.
Early Poly B systems often utilized plastic fittings that were prone to snapping due to degradation.
You can identify it with the usual grey color of the piping but if you have any doubts, you can try reading the identification markings on the pipe.
Stay headache free!