What is the purpose of using a high-density polyethylene pipe for underground applications?

High-density polyethylene (HDPE) pipe is commonly chosen for underground applications primarily due to its remarkable resistance to corrosion. Unlike traditional metal pipes that can deteriorate when exposed to various soil conditions and moisture, HDPE does not rust or corrode, ensuring a longer lifespan and reduced maintenance costs. This property makes it particularly suitable for a variety of applications, including water and wastewater systems, where chemical reactions with soil or transported materials could lead to pipe damage.

Additionally, HDPE's resistance to a wide range of chemicals contributes to its versatility and reliability in diverse environments. While the other options highlight certain characteristics—such as being lightweight, transparent, or capable of withstanding high temperatures—they do not specifically address the most critical feature necessary for underground installations that encounter moisture and potential corrosive substances. The resistance to corrosion is essential for ensuring the durability and effectiveness of pipelines laid beneath the ground.