Clay pipes were a common choice in ancient times. In the United States, they came to be used very early on and were still very popular until relatively recently. Clay pipes started being phased out in the 1960s and 1970s when plastic sewer pipe options such as ABS and PVC were developed.

Are clay pipes still used?

Its still routinely used in public sewer systems today. Modern installations include encasing the clay pipes in concrete to protect against root intrusion and damage from ground shifting. You might be surprised to learn that some still-functioning clay pipe systems in America were installed over 100 years ago.