What is the problem with copper pipes?

Author: Maryse Harber  |  Last update: Friday, April 11, 2025

Copper pipe can corrode. If you live in an area with lower pH levels, you must have the water content tested and monitored. The CDC recommends that copper pipe not be used if the water has a pH of 6.5 or less. (This level could be higher or lower in different areas of the country.

Why do plumbers not use copper anymore?

Copper pipes are pretty terrible. Copper reacts with minerals and chemical additives in the water. After a long time, the copper pipe will wear out. You end up with a leak.

What's wrong with copper pipes?

The most common problem that homeowners have with copper piping is pitting corrosion. It is a tiny leak that is caused by a localized corrosive action. Coppers are relatively corrosion-resistant but can still corrode when the right conditions are met.

Why did they stop using copper pipes in houses?

Vulnerable to Damage

Plumbing failures can be caused by defective copper pipes several years after installation. Acidic water can be very bad for copper systems. Scale builds up inside the lines and blocks the flow of water through the plumbing system.

Should I replace my copper pipes with PEX?

Coupled with low production and shipping costs, the savings resulting from installing PEX instead of copper pipes can be significant. Better Energy Efficiency – PEX has a lower thermal conductivity rate than copper. As a result, PEX pipes can help keep hot water hotter for longer periods of time.

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Why do plumbers not use PEX?

Material Concerns: One of the primary concerns about Pex plumbing is the material itself. While Pex pipes are undoubtedly flexible, making them easier to install in tight spaces, they are not as durable as traditional materials like copper or even PVC.

What is the best plastic plumbing pipe to use?

ABS is the most commonly used, but PVC has a longer history in Europe. ABS is easy to install and is resistant to warping and deterioration in extreme temperatures. If you're installing a new plumbing system in your home, ABS is the best choice.

Which lasts longer, PEX or copper?

Copper pipes outshine PEX pipes in terms of longevity. On average, copper pipes impressively endure for 50 to 70 years, whereas PEX pipes have an expected lifespan of 30 to 50 years.

Do you ever have to replace copper pipes?

If you're lucky, you might get all 50 years from your copper plumbing, but sometimes wear and tear happens quicker than you'd like.

What are 2 disadvantages to using copper pipe?

Disadvantages of Copper Pipes

Copper piping is expensive. It can cost 10 to 15 times more when compared to other types of pipes. Copper may also freeze easily. If your home runs on well water, copper pipes could have problems if the water is acidic.

What is the safest pipe for drinking water?

Copper has been a standard plumbing pipe material since the 1960s, and with good reason. First, copper is the preferred choice from a safety standpoint because it preserves drinking water quality. Unlike galvanized steel or cast iron, copper is corrosion-resistant and doesn't leach rust or sediment into the water.

Why do copper pipes get pinhole leaks?

The primary cause of pinhole leaks is the composition of the water flowing through your plumbing system. Hard water—high amounts of dissolved calcium and magnesium—or water that is too basic (low pH) or too acidic (high pH), can all contribute to copper pipe corrosion.

What do plumbers use instead of copper?

PEX Pipe. PEX, a cross-linked polyethylene pipe, is considered by some to be the greatest innovation for DIY plumbers. PEX pipes often replace copper for hot and cold water in residential retrofits. They are easy to cut, install and connect and less costly than copper.

Why is PEX so popular?

PEX, or cross-linked polyethylene, is a flexible plastic material used for water supply piping systems. Originally developed in the 1960s, PEX has steadily grown in popularity due to its durability, ease of installation, and cost-effectiveness.

Is copper pipe being phased out?

Its popularity soared after lead pipes became obsolete due to their unsafe nature. Today, plumbers still install copper pipes quite regularly, but you have a wide variety of other materials to choose from, too. PVC and PEX are both common and tend to be more affordable than copper.

Should I repipe my house with PEX or copper?

While it is more expensive than pex, your plumbing isn't something you should scrimp on for new construction. Copper is usually preferred for water supply lines and heating systems but plex is most often used for drain or waste lines because copper corrodes over time.

What is the best water line to use in a house?

PVC can last even longer than steel or copper, which are some of the most durable metals for plumbing pipes. Ability to handle pressure: PVC can withstand high water pressure, which makes it an excellent choice for the main supply line in your home.

What is a disadvantage of PEX?

No single pipe/tubing system used in the US has been 100% problem free, and PEX is no exception. Some of the disadvantages of PEX include: It cannot be used outside. It cannot be recycled.

Why is PEX banned in California?

Currently, PEX plumbing is one of the most widely used plumbing systems around the world. It was temporarily banned in California for a while due to concerns about toxic materials but this was later disproven by laboratory tests.

Do they still build houses with copper pipes?

First, check the quality of those pipes, as copper is still the standard for piping and can offer a long-lasting plumbing system if the pipe is well made.

Is it okay to drink water from copper pipes?

Copper pipes: the safe choice for drinking water

Resistant to corrosion and naturally antimicrobial, copper is packed with beneficial properties that help keep drinking water safe.

What is the best pipe for plumbing a bathroom?

The best pipe material for your bathroom plumbing depends on several factors, including:
  • Budget: Copper is the most expensive option, while CPVC and PEX offer more cost-effective solutions.
  • DIY Skills: CPVC and PEX are easier to install for DIY enthusiasts, while copper requires soldering expertise.

Is PEX safe for drinking water?

Is PEX safe for drinking water? Yes, our PEX-a and PEX-b are both safe for drinking water. Our piping system solutions are all third-party tested through IAPMO or NSF to the following standards: NSF/ANSI 61 drinking water systems components - health effects.

Do plumbers use copper pipes anymore?

Copper has been the longtime standard for plumbing. It has been around a long time and we know the material is durable and reliable for water pipes. However, plastic piping (PEX) works well because it is made of a flexible material.

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