What is a common material used for sewer pipes?

PVC, or polyvinyl chloride, is a commonly used material for sewer pipes due to its durability, resistance to corrosion, and relatively low cost. It is lightweight and easy to install, which makes it a preferred choice in both residential and commercial plumbing systems. PVC pipes also have a smooth interior finish that helps in preventing clogs and facilitates efficient flow, which is a critical characteristic for sewer systems. Additionally, PVC is resistant to a wide range of chemicals that might be present in waste, enhancing its suitability for sewer applications. Overall, its performance characteristics and practical advantages make PVC the material of choice for sewer piping.