Which material is commonly used for potable water supply lines?

CPVC (Chlorinated Polyvinyl Chloride) is commonly used for potable water supply lines due to its specific characteristics that make it suitable for carrying drinking water safely. CPVC is resistant to corrosion and has excellent chemical stability, which ensures that harmful substances do not leach into the water supply. Additionally, it can handle higher temperatures compared to regular PVC, making it a versatile choice for hot and cold water distribution.

This material is also lightweight and easy to handle, which simplifies installation. The smooth interior surface of CPVC pipes minimizes the risk of buildup or clogs, promoting better water flow and quality. Its compatibility with various fittings and joints allows for an efficient plumbing system.

While other materials such as metal piping and PVC have their applications, CPVC is specifically engineered for potable water use, ensuring safety and compliance with health regulations.