Polybutylene Pipes: What You Should Know

For homeowners with properties built between the late 1970s to the mid-1990s, there is a very real concern about polybutylene pipes. Widely used in the construction of residential homes during this period, polybutylene pipes have been shown to have a high failure rate under even normal operating conditions. Such was the extent of the problem that a class action lawsuit was filed in 1995, and still stands as one of the largest in United States history. If you own or are considering the purchase of a home built during this time period, there are some important facts you should know.

Structural Compromise

Chemicals commonly found in public water supplies, like chlorine and other oxidants, dramatically reduce the structural integrity of polybutylene pipes. Use of incorrect fittings was widespread, further complicating the integrity of the piping. Because it’s not possible to accurately assess the condition of polybutylene piping simply by looking at it, deterioration occurs internally and is difficult to detect. By the time leaks become apparent, they’re almost always considered an indicator of complete, system-wide pipe failure.

Solving a Polybutylene Piping Issue

If your home still contains polybutylene piping, there is an almost certain chance you will face failure or widespread leaks at some point. In fact, the only real way to avoid potentially devastating damage and expensive repairs is to have the entire potable water system in your home re-piped. Almost all professional plumbers will suggest complete polybutylene pipe replacement over repairs, which is only a short-term fix for a long-term problem. A temporary repair may stave off failure for a short while, but putting off the replacement of polybutylene pipes can have catastrophic consequences for your home.

If you suspect your home may be fitted with polybutylene pipes, contact a licensed and experienced plumber in your area to set up an evaluation. Setting up an inspection and following through with replacement in the event of polybutylene piping discovery is the most effective way of protecting your home and possessions from water damage due to pipe failure.

Posted on behalf of Shawn Bynum, Bynum Plumbing

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Buying a Home? Check for Polybutylene Piping

With interest rates at record lows, house prices near rock bottom, and sellers anxious to get rid of their homes in an overcrowded market, now is a terrific opportunity to get a great deal on a nice home.  New home construction is still slow, so most home buyers are looking at re-sales.

If you are looking at re-sales (previously owned homes), be sure to have the home thoroughly inspected before committing to the purchase.  If the home was built before the early 1990’s be sure the home inspector checks to see if the home was plumbed with polybutylene plumbing.  If in doubt, an inspection by a reputable local plumber could save you thousands of dollars in plumbing repairs for a polybutylene pipe replacement.

Polybutylene pipe was used for the hot and cold water supply pipes in millions of homes constructed after about 1970.  By the early 1990’s use of polybutylene pipe stopped because it was clear that most polybutylene pipes would fail after 5 to 15 years of service.

The exact cause of polybutylene pipe failure is not completely understood, but most experts believe that the pipe reacted to the chlorine in the municipal water supplies, causing it to become brittle and fail.  The only practical solution once the pipes start to fail is to have all of the plumbing in the home replaced.

Most homes built with polybutylene pipes have already had the pipes replaced, but you may find a few homes that still have the original polybutylene pipes.  If so, your options are to either steer clear or to make sure that the purchase price reflects the need to have all of the polybutylene pip replaced.