Old Pipe Materials and Problems

8/11/2022 (Permalink)

Any home built before the 1990s could potentially feature pipes made from materials that are no longer approved by U.S. building codes. If the home has been renovated within the last few decades, some or all of these pipes were probably replaced, but it’s always recommended to have the home’s plumbing inspected to ensure there are no unexpected surprises the first time a drain clogs.

Older homes could potentially feature three outdated types of plumbing pipes:

Lead 

Most commonly used for sewer lines and water main lines, lead is one of the oldest metals used in piping. Before the development of blast furnaces capable of casting iron, lead was an ideal metal for plumbing because of its malleability and durability. Lead was also used extensively as an additive in the solder used to join copper pipe fittings. Unfortunately, lead is highly toxic, resulting in joint and gastrointestinal pain, irritability, fatigue, and memory loss. It is especially dangerous to children, causing serious problems with physical and mental development.

Galvanized 

Commonly used for water lines in homes built before the 1960s, galvanized pipe is made of iron and coated with a layer of zinc. Over time, the zinc erodes, leaving the pipe very susceptible to corrosion and breakage. Although they can last as long as 60 years, most of them become clogged with rust long before then. Aging galvanized pipes become so brittle that they usually have to be broken apart to be removed and replaced. For this reason, they are usually replaced piecemeal in older homes, with the relatively intact pipes left in place.

Polybutylene

Heralded as the pipe of the future when it appeared in the 1970s, polybutylene pipe was introduced as a replacement for copper lines and saw widespread use throughout the 1980s. Unfortunately, the manufacturer was forced to pay out millions of dollars after a class-action lawsuit alleging the pipes were defective. Although the manufacturer never acknowledged a defect, oxidants in public water systems caused a chemical reaction with the plastic, leading it to flake, become brittle, and crack. Polybutylene was mostly used in mobile home installations, but any home constructed in the 1980s and early 1990s may have the plastic pipes somewhere.

If any type of pipe fails you or your business – call SERVPRO of Sussex County; we will be happy to help!