Top Features to Look for in a Quality Water Hammer Arrester

In the realm of plumbing, one of the most annoying issues homeowners may encounter is water hammer. This phenomenon, characterized by loud banging noises in your pipes, can lead to significant plumbing problems over time. The solution? A quality water hammer arrester. In this article, we will delve into the essential features you need to consider when selecting a water hammer arrester, ensuring that your plumbing system operates smoothly and quietly.

Table of Contents

• 1. Understanding Water Hammer and Its Causes


• 2. What Is a Water Hammer Arrester?


• 3. Key Features to Consider When Choosing a Water Hammer Arrester




• 3.1. Material Quality


• 3.2. Size and Compatibility


• 3.3. Pressure Ratings


• 3.4. Installation Ease


• 3.5. Maintenance Requirements




• 4. Types of Water Hammer Arresters




• 4.1. Piston-Type Arresters


• 4.2. Diaphragm-Type Arresters




• 5. How to Properly Install a Water Hammer Arrester


• 6. Common Mistakes to Avoid When Selecting Water Hammer Arresters


• 7. Frequently Asked Questions


• 8. Conclusion

1. Understanding Water Hammer and Its Causes

Water hammer occurs when a fluid in motion is forced to stop or change direction suddenly. This rapid change in momentum creates a shock wave that travels through the pipes, resulting in loud banging noises. Common causes of water hammer include:

• Quick-closing valves


• High water pressure


• Improper pipe support

2. What Is a Water Hammer Arrester?

A water hammer arrester is a device designed to absorb the shock waves created by sudden changes in water flow. By providing a cushion of air or gas, these devices mitigate the impact on your plumbing system, preventing noise and potential damage. Understanding the features that make a quality water hammer arrester is crucial for effective plumbing maintenance.

3. Key Features to Consider When Choosing a Water Hammer Arrester

3.1. Material Quality

The durability of a water hammer arrester heavily depends on the materials used in its construction. Look for devices made from high-quality materials such as:

• Brass: Offers excellent corrosion resistance and longevity.


• Stainless Steel: Known for its strength and resistance to rust.


• PVC: Lightweight and resistant to many chemicals, though less durable than metals.

3.2. Size and Compatibility

Choosing the right size is vital. A water hammer arrester must be compatible with your plumbing system's pipe diameter. Overly large or small devices may not function effectively. Always check manufacturer specifications for size recommendations based on your system's requirements.

3.3. Pressure Ratings

Water hammer arresters come with specific pressure ratings, indicating the maximum pressure they can handle. It’s essential to select an arrester that can accommodate your household water pressure. This ensures that the device performs optimally under various conditions, safeguarding your plumbing system.

3.4. Installation Ease

The installation process for a water hammer arrester should not be overly complicated. Many quality models come with clear instructions or even offer a DIY installation. Look for features like:

• Pre-installed fittings


• Compact design for tight spaces


• Universal compatibility with various pipe types

3.5. Maintenance Requirements

Consider how much maintenance a water hammer arrester requires. Some models are maintenance-free, while others might need periodic checks or adjustments. Opt for a design that aligns with your willingness to perform maintenance tasks.

4. Types of Water Hammer Arresters

4.1. Piston-Type Arresters

Piston-type water hammer arresters use a moving piston to absorb shock waves. These devices are highly effective and can handle significant pressure changes. They are ideal for systems with high water pressure and frequent flow changes.

4.2. Diaphragm-Type Arresters

Diaphragm-type arresters utilize a flexible diaphragm to cushion the shock. These models are generally easier to install and maintain, making them an excellent choice for residential applications.

5. How to Properly Install a Water Hammer Arrester

Proper installation is crucial for the effectiveness of a water hammer arrester. Here’s a step-by-step guide:

1. **Turn off the water supply** to your plumbing system.


2. **Identify a suitable location** for installation. The arrester should be placed close to the source of the water hammer.


3. **Cut the pipe** where the arrester will be installed, ensuring to remove any burrs.


4. **Attach the arrester** using appropriate fittings or soldering techniques, depending on the type of pipes you have.


5. **Turn on the water supply** and check for any leaks. Ensure the device is functioning correctly.

6. Common Mistakes to Avoid When Selecting Water Hammer Arresters

When choosing a water hammer arrester, several pitfalls can compromise your selection process:

• **Ignoring pressure ratings:** Always match the arrester’s pressure capabilities with your home’s water pressure.


• **Overlooking material quality:** Low-quality materials can lead to premature failure.


• **Forgetting to check compatibility:** Ensure that the arrester matches your pipe size and type to avoid installation issues.

7. Frequently Asked Questions

1. How do I know if I need a water hammer arrester?

If you hear banging noises when turning off faucets or appliances, you likely need a water hammer arrester to mitigate the noise and protect your plumbing.

2. Can I install a water hammer arrester myself?

Yes, many water hammer arresters are designed for easy installation. However, ensure you follow the manufacturer’s guidelines for optimal results.

3. How often should I check my water hammer arrester?

Regular checks are recommended, especially if you notice changes in noise levels. Maintenance-free models may require less frequent inspections.

4. What happens if I ignore water hammer?

Ignoring water hammer can lead to pipe damage, leaks, and even the failure of appliances connected to your plumbing system.

5. Are water hammer arresters expensive?

The cost of water hammer arresters can vary widely based on quality, size, and type. However, investing in a good quality arrester can save you money in repairs down the line.

8. Conclusion

Investing in a quality water hammer arrester is essential for maintaining a quiet and efficient plumbing system. By understanding the critical features to look for—such as material quality, size compatibility, pressure ratings, and installation ease—you can make an informed decision that will protect your home from the disruptive effects of water hammer. Take the time to research and choose wisely, and enjoy the peace of mind that comes with a well-functioning plumbing system.