Which type of pipe is most commonly used for potable water supply?

Copper is the most commonly used type of pipe for potable water supply due to several key factors. It has excellent corrosion resistance, which ensures the longevity and integrity of the water supply system. Copper pipes are also known for their antimicrobial properties, which help in maintaining the safety of drinking water by preventing the growth of bacteria and other pathogens.

Additionally, copper is relatively easy to work with, allowing for secure joints and connections through methods like soldering or brazing. This results in a durable and reliable plumbing system that can withstand high temperatures and pressures, making it suitable for both hot and cold water applications.

Moreover, copper pipes have a long service life, often exceeding 50 years, which contributes to their popularity in residential and commercial plumbing systems. The overall combination of safety, durability, and performance makes copper the preferred choice for transporting potable water.