If you’re on city sewer, you may have no idea what type of sewer pipes you have, or even a general estimate of their age. Are they clay, plastic or cast iron, or have they been replaced with newer material? Although it’s not strictly necessary to know the material of which your pipes are made, this information can give you an idea of how long they’ll last. Each type of pipe has its merits,but each also comes with its own set of drawbacks and possible repair issues.
Types Of Sewer Pipes And Problems
The most common sewer pipes in homes built at least ten years ago are made from clay, cast-iron or plastic. Of course, regardless of what type of pipe was used when the home was built, there may be new piping which has been installed in recent years, including trenchless piping made from high- density polyethylene (HDPE). Some of the common issues with the main three types of sewer pipes include:
- Clay. Clay piping was very popular for many years before plastic piping became prevalent in the late 1960’s. Although durable, clay is also porous, attracting tree roots to their surface. These pipes can be cracked from invasive roots, splitting them open at the joints.
- Cast-iron. Cast-iron has been used for sewer pipes since the 1800’s, due to its strength and longevity. It can last for a hundred years or more, which means many older homes still have cast-iron. The main issue is that very few sewer repair companies have the tools or skills to repair this type of piping, which means it usually needs to be replaced.
- Plastic. PVC and ABS are very common pipes used in underground sewer lines and interior plumbing. It is resistant to root invasion, but is not as strong under pressure or weight.
Regardless of the type of pipe you have under your yard, your local sewer service company will have options when it comes to repair or replacement.
Posted on behalf of Find Local Sewer Septic
