What is a primary advantage of PVC piping?

The primary advantage of PVC piping is its resistance to corrosion. Unlike metal pipes, which can rust or corrode over time when exposed to moisture and various chemicals, PVC (polyvinyl chloride) is made from plastic, making it impervious to such deterioration. This characteristic not only prolongs the lifespan of the piping system but also ensures that the water or other materials being transported remain uncontaminated. Furthermore, this resistance to corrosion makes PVC suitable for a variety of applications, including drainage, waste, and even some potable water systems where longevity and cleanliness are crucial.

In contrast, the other options present characteristics that are not advantageous. Soldering, which is required for connecting metal pipes, is not applicable to PVC, as joints are typically solvent-welded, making installation quicker and easier. Regarding weight, PVC is notably light, which makes transportation and installation simpler compared to heavier materials. Finally, while PVC has some flexibility, it is not designed to be highly flexible, which limits its use in applications that require bending. Thus, the durability and long-lasting nature of PVC piping due to its corrosion resistance is a key benefit that many systems utilize.