Sewer systems in residential and commercial structures have changed dramatically over the last several decades. Pipes built 40 to 50 years ago were constructed with material that was susceptible to corrosion and other elements of nature that ended up compromising the pipe’s ability to carry the structure’s sewage. When the pipes aged over the years, it was evident that the materials used were not sufficient to withstand the various effects of wear and tear that comes with any piping system. From natural deterioration to corrosion, something had to change to make the material in sewage systems stronger.
When trenchless technology began to take off, the piping industry went through a major shift. Sewer repairs were finally able to occur without the massive destruction to surrounding areas and the materials used were resilient enough to withstand the harsh conditions that pipes must undergo. The most common types of piping material used today include:
- Ductile Iron
- Plastic [Polyvinyl Chloride (PVC) and High-Density Polyethylene (HDPE)]
- Polymer Concrete
- Vitrified Clay
The rules and regulations regarding sewer and piping systems has changed as well. The National Sanitation Foundation (NSF) requires very strict guidelines for the piping material that is allowed to be used in residential homes. For residential plumbing projects, the NSF approves the following material:
- Galvanized Pipe
The old lead service lines that were used are now deemed unsafe for the public and therefore all residential plumbing must be done with one of these above materials.