From 1978 to mid-1995, Polybutylene (PB) was a commonly used plastic material for plumbing systems in residential homes due to its low cost and numerous benefits, including its flexibility, ease of installation, and resistance to freezing. Approximately 10 million homes in the United States had PB pipes installed during this period. However, despite its advantages, production was discontinued in mid-1996 following numerous reports of PB pipes rupturing and causing property damage. Homeowners with PB piping must now decide whether to bear the financial burden of replacing their pipes or take the risk of experiencing costly plumbing problems.
According to research conducted by the University of Illinois at Chicago, specific disinfectants have been found to react with polybutylene (PB) pipes, causing the material to flake apart throughout the piping system. As time progresses, these small fractures can deepen and reach the exterior of the pipe, leading to water leaks. Although some manufacturers argue that most leaks occur at joints and unions due to improper installation, class-action lawsuits filed against PB manufacturers have resulted in successful payouts of up to $1 billion to affected homeowners.
While no government regulations mandate the replacement of polybutylene (PB) pipes with alternative materials, many plumbing professionals suggest doing so to avoid potential issues. The cost of replacement can run several thousand dollars, but failing to replace PB piping can result in unpredictable leaks, causing extensive damage to a home’s interior. Leaks from PB pipes hidden behind walls can go unnoticed for extended periods, leading to mold growth and water damage. BullsEye Home Inspectors recommends replacing PB pipes before they fail and cause harm to floors, appliances, and furniture. Failing to do so can decrease a home’s value or prolong its time on the market, and may also result in higher insurance premiums or even denial of coverage. For homeowners concerned about PB piping, there are companies that specialize in replacing it with copper or other materials.
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