PEX Plumbing: Why It’s Better than Plastic

When it comes to the quality and safety of your water supply, it's important to understand the materials and methods used to transport that water. Many people might not know that their water runs through miles of plastic pipes, which can affect water quality and taste. In this article, we will explore why PEX (Cross-Linked Polyethylene) plumbing is superior to plastic pipes, debunk common myths, and explain why copper systems are still worth considering.

Why Water Runs Through Plastic Pipes

It's no secret that water in municipal systems often travels through a series of plastic pipes before reaching your home. However, just because water comes in a plastic bottle doesn't mean it's any less safe. The materials used for water pipes are specifically designed to ensure water quality and safety.

Drinking from plastic does not imply that the pipes used in your home are inferior. For instance, if you have a copper plumbing system installed, you might not even realize how good drinking from such a system can be. Copper pipes, though effective, can have a metallic taste for several months until the interior of the pipe forms a protective layer.

This protective layer, which develops over time, can significantly improve the taste of the water. But even so, modern PEX pipes have been tested and proven to leach fewer materials into the water than copper or steel pipes. Over time, the interior of the PEX pipe also develops a protective skin, similar to that of copper, making it a safer and more effective choice for water supply.

By What Reckoning is Plastic Bad to Drink Out of?

Let's address the concern: is plastic really bad for drinking water? The answer is no. While it's true that the phrase "plastic" can be misleading due to its broad application, it’s important to understand the specific types of plastic used in plumbing systems. PEX, for example, is a food-grade material that has been extensively tested and proven to be safe for potable water.

PEX is a cross-linked polyethylene that has a unique molecular structure, which makes it highly durable and resistant to bursting. It also has a significantly lower risk of leaching contaminants into the water compared to other materials. In fact, PEX has been tested to leach fewer materials into contained water than steel or copper piping. Therefore, when it comes to choosing materials for your water system, PEX is a safe and effective option.

PEX and PB Pipes - Uses in Plumbing

PEX and PB (Polybutylene) pipes have a wide range of applications in both plumbing systems and heating systems. While PEX is gaining popularity due to its durability and flexibility, PB pipes were once common in residential plumbing systems. However, PB pipes have been found to be problematic due to seals that can fail over time, leading to leaks.

Fortunately, PEX is an excellent alternative. It offers several advantages over PB, including better resistance to freezing and a lower tendency to burst. PEX is also more efficient and easier to install, making it a popular choice for new construction and renovation projects. In addition, PEX systems are less likely to rupture during winter localized freezing, making them a safer option for regions with harsh winters.

Not All Plastics are Created Equal

It's important to understand that not all plastics are created equal when it comes to their use in plumbing systems. The myths surrounding the safety of plastic pipes often stem from a lack of knowledge about the specific materials and their properties. So, let's debunk some common myths:

Myth 1: All Plastics Leach Contaminants

Not all plastics are designed to be in contact with drinking water. For instance, PEX is a food-grade plastic that has been tested to leach fewer materials into water than steel or copper pipes. The molecular structure of PEX makes it resistant to leaching and allows it to form a protective skin over time, enhancing water quality.

Myth 2: Plastic Pipes are Inferior to Copper Pipes

Copper pipes have been used for centuries and are still a preferred option in many homes. However, copper pipes can have a metallic taste for several months until the protective layer forms. PEX, on the other hand, is a more modern material that doesn't require this waiting period. It offers similar durability and resistance to corrosion but with greater flexibility and easier installation.

Myth 3: Plastic Pipes Fail More than Copper Pipes

While it's true that PB pipes were found to fail over time due to poor seals, PEX is a much better alternative. PEX pipes are less prone to leaks and ruptures, especially during winter months. In fact, PEX offers superior resistance to freezing and bursting under pressure, making it a reliable choice for both new and existing plumbing systems.

Conclusion

In conclusion, when it comes to plumbing systems, PEX is a safe, durable, and efficient choice. It offers superior resistance to leaching and bursting, making it a better option than other plastic or metal pipes. While copper pipes are still a popular choice, PEX provides a modern, flexible, and easily installed solution that meets the needs of today's homes. Whether you're installing a new system or renovating an existing one, PEX is a smart investment for your water supply.