Environmental
Homes with polybutylene (PB) pipes, found in some Pennsylvania homes built between 1978–1995, face what risk?
ALead contamination of drinking water
BPipe failure and leaks — PB pipes degrade over time and have higher failure rates than copper✓ Correct
CFire hazard from combustible pipe material
DRadon contamination from groundwater interaction
Explanation
Polybutylene pipes installed during the late 1970s through mid-1990s are known to degrade when exposed to chlorinated water and oxidants, becoming brittle and failing. Pennsylvania homes with PB plumbing may face insurance difficulty, reduced buyer interest, and pipe replacement costs. Home inspectors identify PB systems for disclosure.
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