Different Types of Plumbing Pipes

Galvanized steel is a popular material for pipes.

Repairing or upgrading a plumbing system involves navigating an assortment of pipe options. The variety might seem overwhelming, especially when determining the best fit for an existing system. Today’s market offers plenty of options to meet the needs for each project; below is a breakdown of the primary types of plumbing pipes that may be encountered during home renovation projects.

Cross-linked polyethylene (PEX)

PEX is a flexible, color-coded plastic pipe commonly used for water supply lines, and has become the go-to for many DIY plumbers. Its malleability makes it a favorite among DIY enthusiasts. PEX is easy to cut and join, and its flexibility means it can accommodate 90-degree bends.

Polyvinyl chloride (PVC)

PVC pipe has taken the plumbing industry by storm over the last few decades. It is a plumbing material that is lightweight and easy to work with compared to conventional galvanized steel pipe. Typically, PVC is the choice for waste, drain pipes, or stacks—the pipes often visible along rooflines. Installing PVC is straightforward; the only tools needed are a miter box, hacksaw, and solvents to glue the pipes together. Pipe diameters are usually marked on the outside of PVC; however, if not visible, sizing tools like the Pi-Piper can come in handy.

Rigid copper

Rigid copper pipes predominantly serve as a water supply line. It can be cut using a hacksaw, skilsaw, or a copper tube cutter. Joining copper pipes, however, requires specialized skills and tools; pieces must be soldered together. It is recommended to have extra copper pipes to practice with before attempting a DIY solder joint. Rigid copper is used for water supply lines since it doesn’t pose the health hazards sometimes linked with PVC.

Acrylonitrile butadiene styrene (ABS)

ABS pipes resemble PVC pipes in appearance and structure. The primary difference is that the ABS pipes are available in black, vs. PVC’s typical white. They are the older version of PVC pipes and are usually no longer used in accordance with current plumbing codes. Like PVC, ABS pipes are commonly used for vents and drains. It is recommended to replace ABS with PVC.

Flexible copper

Ideal for short distances, flexible copper may be found as connections to water heaters or for cold water supply in tight spots. Cutting is simple using a hacksaw, and its flexibility allows it to be used around corners. However, flexible copper tubing’s vulnerability to extreme temperature changes makes it unsuitable for long distances and external placements.

Galvanized steel

Galvanized steel is a popular material for pipes. Both ends of the pipe are threaded, allowing them to be easily screwed to one another with connecting joints. Although highly durable, galvanized steel pipe is infrequently used in new home construction plumbing systems. It is not recommended for DIY projects that include new lines.

Cast iron

There are still homes that have older cast iron pipes. Although they may appear worn, cast iron can be used until it rusts completely.

MNS Plumbing provides prompt, efficient, and reliable drain cleaning, repiping, drain inspection, and video sewer line inspection services. Call 602-362-4524 to learn more.