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In this article, we describe the most common types of plumbing pipes and how they’re used within your home’s plumbing system. The plumbing pipes that carry water to your kitchen faucet or drain waste to your sewage system have evolved over time. The galvanized iron or steel pipes that were a staple to in-home plumbing during the early 1900s gave way to more advanced plumbing solutions, such as polyvinyl chloride piping (PVC) and polyethylene cross-linked (PEX) piping. Keep reading to learn about the most common plumbing pipes you can find in your home. 1. PVC PipesPVC is a plumbing pipe known for its versatility, lightweight, and blockage resistance. PVC piping is generally used as part of a sink, toilet, or shower drain line, though it’s sometimes used as a home’s main water supply pipe. Pros
Cons
Read More: How to Identify PVC Pipes and Fittings 2. PEX PipesPEX is an affordable plastic plumbing solution that can withstand both hot and cold water and is commonly used for water supply lines. Pros
Cons
3. ABS PipesAcrylonitrile butadiene styrene (ABS) piping is a type of plastic piping that’s similar to PVC and distinguishable by its black color. Known for its long lifespan, ABS is used only for drain and waste piping. Pros
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4. Copper PipesCopper piping lasts for over 50 years and is the standard hard pipe within the plumbing industry. It’s able to withstand high water pressure and comes in various grades of thickness, separated into two categories: rigid and flexible copper pipes. A rigid copper pipe is typically used for water supply lines, whereas flexible copper pipes are used in tight spaces where the malleable copper can bend. Pros
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5. Cast Iron and Galvanized PipingAlthough cast iron and galvanized piping are rarely installed in new construction homes, you may have these pipes if you have an older home that was built in the early 20th century. A cast-iron pipe is strong and durable and is still used today for parts of water distribution systems. Cast iron pipes are heat-resistant and reduce the sound of moving water. Both pipes are prone to rust and corrosion over time and have been swapped for copper or plastic pipes in residential plumbing repairs. Frequently Asked Questions About Plumbing PipesWhat are the different types of pipes used in plumbing?The most common plumbing pipes you’ll find inside a home are PVC, PEX, ABS, copper, or galvanized steel pipe. How often does plumbing need to be replaced?The frequency in which you need to replace pipes is based on the pipe material used. Brass, cast iron, and galvanized steel have a lifespan of up to 100 years, copper can last over 50 years, and PEX and PVC usually last around 50 years. If you live in a newer home, you probably don’t have to worry about replacing your pipes, however, if you live in an older home, consider having your plumbing system checked every two years to ensure it’s holding up. What causes plumbing pipes to vibrate?Pipes vibrate due to what’s called the “hammer” effect. This happens when water is abruptly turned off, resulting in the thumping and vibrating sound heard throughout the house.
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September 2020
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