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PEX plumbing has gained popularity in recent years as an alternative to traditional copper and PVC pipes. However, like any plumbing system, PEX has its advantages and disadvantages.
In this article, we will discuss why PEX plumbing may not be the best choice for every situation, the lifespan of PEX plumbing, the advantages of using PEX pipes, maintenance tips for PEX plumbing systems, and whether it is safe to use in hot water systems.
Why is PEX Plumbing Bad?
One of the major concerns with PEX plumbing is its potential to leach chemicals into the water supply. PEX pipes are made from a type of plastic called cross-linked polyethylene, which can release harmful substances when exposed to certain chemicals and high temperatures. This is especially concerning for those who have sensitivities or allergies to certain chemicals.
Additionally, PEX pipes are more susceptible to damage from rodents and pests compared to other types of pipes. The material is softer and easier to chew through, making it more vulnerable to leaks and bursts.
The Pros and Cons of PEX Plumbing Compared to Other Pipes
PEX plumbing is a type of flexible pipe made of cross-linked polyethylene. PEX plumbing has some advantages and disadvantages compared to other types of plumbing pipes, such as copper, PVC, or CPVC. Here are some of the pros and cons of PEX plumbing:
Pros:
- It is inexpensive compared to copper.
- It is easy to install and cut.
- It is freeze-resistant and corrosion-resistant.
- It is safe for drinking water.
- It can be attached to a plumbing manifold.
Cons:
- It is more expensive than other PEX types.
- It may be damaged by bends or chemicals.
- It does not require soldering, which may affect the quality of the connections.
- It works against the “shape memory” of PEX, which always wants to return to its natural shape.
- It has a smaller internal diameter than the pipe, which reduces system flow and opens up the potential for dry fits.
What is the Lifespan of PEX Plumbing?
PEX plumbing is relatively new, so its long-term durability is still being studied. However, most manufacturers estimate that PEX pipes have a lifespan of around 40-50 years. This is comparable to the lifespan of copper pipes but shorter than the estimated lifespan of PVC pipes, which can last up to 75 years.
The Advantages of PEX Plumbing
Despite its drawbacks, PEX plumbing also offers several advantages that make it a popular choice among homeowners and contractors. One of the main advantages is its flexibility. PEX pipes can be bent and curved, allowing for easy installation in tight spaces and reducing the need for additional fittings.
PEX plumbing is also resistant to corrosion and scale buildup, which can extend its lifespan and improve water flow. The smooth interior surface of PEX pipes helps to prevent clogs and maintain water pressure.
How to Maintain Your PEX Plumbing System
To ensure the longevity and performance of your PEX plumbing system, regular maintenance is essential. Here are a few tips to keep in mind:
- Inspect your pipes regularly for any signs of damage or leaks. PEX pipes should be replaced if they show signs of deterioration or wear.
- Prevent freezing by insulating exposed pipes and keeping your home adequately heated during cold weather.
- Avoid exposing PEX pipes to direct sunlight for extended periods, as UV rays can degrade the material over time.
- Use approved fittings and connectors to prevent leaks and ensure compatibility with your PEX plumbing system.
Is it Safe to Use PEX Plumbing in Hot Water Systems?
PEX plumbing is generally considered safe for use in hot water systems. However, it is important to note that PEX pipes have a lower melting point compared to copper pipes. Therefore, it is crucial to follow manufacturer guidelines and avoid exposing PEX pipes to excessive heat to prevent any potential issues.
In conclusion, PEX plumbing has its pros and cons. While it offers flexibility, resistance to corrosion, and easy installation, it also has concerns regarding chemical leaching and vulnerability to damage. By understanding these factors and properly maintaining your PEX plumbing system, you can make an informed decision about whether it is the right choice for your home.
