What is a common advantage of using PVC drain pipes?

Using PVC drain pipes offers significant advantages, one of which is their resistance to corrosion combined with a lightweight structure. PVC, or polyvinyl chloride, is a type of plastic that does not rust or corrode when exposed to water and various chemicals, making it an ideal material for drainage systems. This property ensures a longer lifespan for the piping, reducing maintenance and replacement costs over time.

Additionally, being lightweight makes PVC easier to handle and install compared to heavier materials like metal pipes. This can lead to reduced labor costs and simplified installation processes. The overall benefits of durability and ease of use make PVC a popular choice for plumbing professionals when considering the right materials for drainage solutions.

In contrast to the other options, the aspects of being more expensive, having higher pressure ratings, or being restricted to indoor use do not align with the advantages typically associated with PVC drain pipes.