Which material is commonly used for potable water distribution and is known for being flexible and easy to install?

Which material is commonly used for potable water distribution and is known for being flexible and easy to install?

• A. HDPE.
• B. Ductile iron
• C. PVC
• D. Concrete

Answer: (A)

Pipes used for distributing potable water benefit from being flexible and easy to install, and HDPE fits that need well. High-density polyethylene is lightweight and can be run in long lengths, which means fewer joints and faster installation. Its joints are made by fusion welding (butt fusion or electrofusion), creating leak-free, durable connections that tolerate some ground movement. HDPE also resists corrosion and is suitable for drinking water when approved for potable use. Ductile iron is strong but heavy and rigid, requiring more fittings and labor to install. PVC is rigid and less forgiving when routing around obstacles. Concrete is heavy and not typically used for potable water mains due to permeability and joint issues.

Pipes used for distributing potable water benefit from being flexible and easy to install, and HDPE fits that need well. High-density polyethylene is lightweight and can be run in long lengths, which means fewer joints and faster installation. Its joints are made by fusion welding (butt fusion or electrofusion), creating leak-free, durable connections that tolerate some ground movement. HDPE also resists corrosion and is suitable for drinking water when approved for potable use.

Ductile iron is strong but heavy and rigid, requiring more fittings and labor to install. PVC is rigid and less forgiving when routing around obstacles. Concrete is heavy and not typically used for potable water mains due to permeability and joint issues.