Which material is commonly used for water supply lines?

CPVC, or Chlorinated Polyvinyl Chloride, is a widely accepted material for water supply lines due to its advantageous properties. It is lightweight, resistant to corrosion, and has a high pressure rating, making it ideal for potable water applications. CPVC pipes are also relatively easy to install, requiring fewer tools and techniques than some traditional materials. Additionally, they can handle varying water temperatures, which enhances their overall utility in different plumbing scenarios. This longevity and reliability are essential for maintaining safe and effective plumbing systems.

In contrast, clay, wood, and stone are not suitable for modern water supply lines. Clay pipes can be used historically in drainage but are prone to cracking and are not used for high-pressure systems. Wood, while used in some plumbing installations in the past, is susceptible to rotting and is not a viable option for water supply in contemporary plumbing systems. Stone, similar to clay, lacks the structural integrity necessary for modern piping requirements and does not provide the necessary sealing or flexibility.