Have you ever stopped to think about what kind of pipes are running behind your walls or under your floors? Your plumbing system plays a huge role in your everyday life, and the materials used in those pipes can affect everything from water quality to long-term durability.

From modern favorites to outdated options you might still find in older homes, here’s a breakdown of four common pipe materials used today—and a few that have fallen out of favor.

Copper

Copper pipes have long been a trusted choice for residential plumbing due to their exceptional durability and corrosion resistance. These plumbing pipes can last for decades without significant degradation, making them a popular option for water supply piping. 

Their ability to withstand high pressure and high temperatures makes them ideal for hot water and cold water supply lines. Unlike galvanized pipes, rigid copper pipes do not accumulate rust or mineral buildup, which helps preserve water quality over time. Additionally, their corrosion-resistant nature makes them a good choice for both homes and commercial buildings.

PVC

Over the years, PVC pipes have become a go-to option for plumbing systems. Also known as polyvinyl chloride, their lightweight structure simplifies installation and reduces labor costs compared to heavier alternatives. PVC pipes also resist rust and chemical damage, making them a durable and long-lasting option.

These plastic pipes are commonly found in drain lines, vent systems, and cold water lines, as they maintain strong performance in cold temperatures. The smooth interior of polyvinyl chloride allows for efficient water flow, which minimizes the risk of blockages in home plumbing systems.

CPVC

Chlorinated polyvinyl chloride (CPVC pipe) is an advanced version of PVC pipes that offer enhanced heat resistance and durability. CPVC pipes maintain their structural integrity in hot water applications.

This makes it a preferred choice for hot and cold water systems in both residential and commercial piping systems. Its resistance to chlorine and chemicals makes it suitable for transporting drinking water, unlike older galvanized iron options. With their ability to withstand high pressure, CPVC is a dependable choice.

PEX

PEX pipes, made from cross-linked polyethylene, offer unmatched flexibility in plumbing system installations. Unlike other materials that require precise fittings and cutting, PEX pipes bend easily—reducing the need for extra joints. 

This adaptability makes them perfect for cold water supply lines in areas prone to freezing, as they expand and contract without bursting. Their suitability for hot and cold water systems allows them to function in both outdoor plumbing and interior supply lines. Because they resist scaling and internal buildup, PEX pipes are always a reliable option!

What Pipe Materials Are No Longer in Use?

  • Galvanized steel pipe: Previously used for water supply lines, this plumbing pipe material corrodes over time. This, in turn, leads to restricted flow and potential contamination in drinking water systems.
  • Lead: Once widely used for water supply, lead pipes pose severe health risks by leaching harmful substances into drinking water. Prolonged exposure can lead to neurological damage and other serious issues.
  • Polybutylene: Marketed as an affordable alternative to different pipe materials, polybutylene pipes proved unreliable due to their tendency to become brittle and crack when exposed to chlorine-treated water.
  • Cast iron: Commonly found in drain lines and drain waste and vent systems, cast iron pipes suffer from rust and eventual structural failure, making them less practical than modern alternatives.
  • Orangeburg: Also known as bituminous fiber pipes, this black plastic pipe was once used in sewer systems but deteriorated quickly.

If You Need Professional Repiping Services, Call Benjamin Franklin Plumbing® Today

Are the pipes in your plumbing system outdated? Then Benjamin Franklin Plumbing® can help you replace them!

Whether you need complete repiping services or minor plumbing repairs in Doylestown, we've got you covered. Reach out today to schedule a service for your plumbing system!