Plumber’s Secret: How to Prevent Noisy Pipes with a Water Hammer Arrester
What To Know
- A water hammer arrestor, also known as a water hammer arrester or shock absorber, is an essential device that plays a crucial role in safeguarding your plumbing system from the destructive effects of water hammer.
- Water hammer, a sudden pressure surge in pipes, occurs when a fast-flowing stream of water is abruptly stopped.
- Consider the volume of water flow in the affected area to determine the appropriate capacity of the arrestor.
A water hammer arrestor, also known as a water hammer arrester or shock absorber, is an essential device that plays a crucial role in safeguarding your plumbing system from the destructive effects of water hammer. Water hammer, a sudden pressure surge in pipes, occurs when a fast-flowing stream of water is abruptly stopped. This surge can cause loud banging noises, damage to pipes, joints, and appliances, and even lead to leaks or bursts.
How Does a Water Hammer Arrestor Work?
Water hammer arrestors work on a simple yet effective principle. They consist of a chamber filled with air or gas, which acts as a cushion. When water hammer occurs, the sudden pressure surge forces the water into the chamber, compressing the air or gas. This compression absorbs the shock and dissipates the excess pressure, preventing it from damaging the plumbing system.
Types of Water Hammer Arrestors
Water hammer arrestors come in various types to suit different plumbing applications:
- Diaphragm-Type Arrestors: These arrestors use a flexible diaphragm to separate the water from the air chamber. They are suitable for most residential and commercial plumbing systems.
- Piston-Type Arrestors: Piston-type arrestors employ a piston to create a seal between the water and air chambers. They are more durable and handle higher pressures than diaphragm-type arrestors.
- Bladder-Type Arrestors: Bladder-type arrestors use a flexible bladder to create a pressurized air chamber. They are often used in industrial applications or where high-pressure surges are expected.
Benefits of Using Water Hammer Arrestors
Installing water hammer arrestors offers numerous benefits:
- Prevents Damage: Water hammer arrestors effectively absorb pressure surges, protecting pipes, appliances, and fixtures from damage.
- Reduces Noise: By eliminating water hammer, these devices minimize the loud banging noises associated with it, creating a more peaceful living or working environment.
- Extends Appliance Life: Appliances connected to the water supply, such as dishwashers and washing machines, are susceptible to damage from water hammer. Arrestors help extend their lifespan.
- Protects Against Leaks and Bursts: Water hammer can weaken pipes and joints, leading to leaks or bursts. Arrestors prevent these costly and inconvenient problems.
When to Install Water Hammer Arrestors
Water hammer arrestors should be installed in areas where sudden changes in water flow occur:
- Near Fast-Closing Valves: Install arrestors close to valves that are frequently closed quickly, such as washing machine or dishwasher valves.
- Long Pipe Runs: In long pipe runs, water has more momentum, making it more likely to cause water hammer when stopped abruptly.
- High-Pressure Systems: Plumbing systems with high water pressure are more prone to water hammer. Arrestors help mitigate these surges.
- Appliance Connections: Appliances that draw water quickly, like dishwashers, can create water hammer. Install arrestors on their supply lines.
Choosing the Right Water Hammer Arrestor
Selecting the appropriate water hammer arrestor depends on several factors:
- Pipe Size: Choose an arrestor with the correct pipe size for your plumbing system.
- Pressure Rating: Ensure the arrestor’s pressure rating is higher than the maximum pressure in your system.
- Capacity: Consider the volume of water flow in the affected area to determine the appropriate capacity of the arrestor.
Installation and Maintenance
Installing water hammer arrestors is a relatively straightforward task. However, it’s always advisable to consult a qualified plumber for proper installation and maintenance.
- Installation: Install the arrestor vertically, with the air chamber facing up. Ensure it is securely connected to the plumbing system.
- Maintenance: Water hammer arrestors generally require minimal maintenance. However, regular inspections for any leaks or damage are recommended.
Final Thoughts:
Water hammer arrestors are invaluable devices that protect your plumbing system from the harmful effects of water hammer. Understanding their function, types, benefits, and installation guidelines empowers you to maintain a tranquil and damage-free plumbing system. By implementing these measures, you can ensure your plumbing operates smoothly and efficiently for years to come.
What You Need to Know
1. What are the signs of water hammer?
- Loud banging noises in pipes
- Leaking or bursting pipes
- Damaged appliances
- Reduced water pressure
2. Can I install a water hammer arrestor myself?
- While it is possible, it is recommended to consult a qualified plumber for proper installation.
3. How often should I inspect my water hammer arrestor?
- Regularly inspect the arrestor for any leaks or damage, at least once a year.
4. What is the lifespan of a water hammer arrestor?
- With proper maintenance, a water hammer arrestor can last for several years.
5. Can I use multiple water hammer arrestors in my plumbing system?
- Yes, installing multiple arrestors in different locations can provide additional protection against water hammer.
