Introduction
Are you sick and tired of hearing that annoying banging or rattling noise whenever you turn off a faucet or any water outlet in your home? Do you ever wonder what this noise is and what causes it? You are not alone! This noise, also known as water hammer, is a common plumbing problem that can be frustrating and even damaging to your pipes and fixtures if left unaddressed. In this article, we will discuss everything you need to know about water hammer, its causes, and most importantly, how to get rid of it.
What is Water Hammer?
Water hammer is a banging noise that occurs when the water flowing in a pipe suddenly stops or changes direction, causing a shockwave that travels through the pipe and hits against the valves, fittings, and walls. This shockwave produces a loud noise, similar to a hammer hitting against a metal surface, hence the name water hammer.
Water hammer is not only a nuisance but can also cause damage to your plumbing system, especially if it occurs frequently over time. It can cause your pipes to loosen, joints to weaken, and even lead to burst pipes or leaks if left untreated. That’s why it’s crucial to know how to get rid of water hammer and prevent it from happening again.
What Causes Water Hammer?
Water hammer can be caused by several factors, including:
| Causes | Effects |
|---|---|
| High Water Pressure | Increased water velocity and force, leading to sudden stops and changes in direction. |
| Loose or Damaged Pipe Straps | Pipes banging against walls and other surfaces. |
| Closed Valves | Water pressure buildup behind closed valves, resulting in a sudden release of pressure when the valve is opened. |
| Waterlogged Air Chambers | Air chambers filled with water, reducing their effectiveness in absorbing shockwaves. |
| Excessive Water Velocity | Water flowing too fast through the pipes, increasing the likelihood of water hammer. |
How to Get Rid of Water Hammer?
Now that we know what water hammer is and what causes it, let’s discuss how to get rid of it. There are several methods you can use, depending on the severity of the problem and the cause.
Method 1: Lower the Water Pressure
One of the most common causes of water hammer is high water pressure. If your water pressure is too high, reducing it can help eliminate or reduce water hammer. You can adjust your water pressure by turning the pressure regulator valve located near the main water supply valve clockwise to decrease pressure.
Method 2: Install Water Hammer Arrestors
If your pipes are prone to water hammer, installing water hammer arrestors can be an effective solution. Water hammer arrestors are devices that absorb the shockwave caused by water hammer, preventing it from damaging your plumbing system and producing noise. They are easy to install and can be attached to your washing machine, dishwasher, or any other appliance that uses water.
Method 3: Secure Loose Pipes
If your pipes are loose or improperly secured, they can rattle against walls and other surfaces, causing water hammer. Installing pipe straps or hangers can help secure the pipes in place and prevent them from moving.
Method 4: Drain and Refill the Air Chambers
Air chambers are vertical pipes installed near your plumbing fixtures that contain air, which absorbs shockwaves and prevents water hammer. Over time, these air chambers can become waterlogged, reducing their effectiveness. To fix this, turn off your main water supply, open all faucets and outlets, and allow the water to drain out. Then turn the supply back on, and the air chambers will refill with air.
Method 5: Install a Pressure-Reducing Valve
If all else fails, installing a pressure-reducing valve can help regulate and reduce your water pressure, eliminating water hammer and preventing other plumbing issues.
Advantages and Disadvantages of Each Method
Method 1: Lower the Water Pressure
Advantages:
- Relatively easy and inexpensive to do.
- Can reduce other plumbing issues caused by high water pressure.
Disadvantages:
- May not solve the problem if water pressure is not the main cause of water hammer.
- Low water pressure can affect your daily activities, such as showering or washing dishes.
Method 2: Install Water Hammer Arrestors
Advantages:
- Effective in absorbing shockwaves and preventing water hammer.
- Can be attached to specific appliances or fixtures, reducing the cost of installation.
Disadvantages:
- Can be expensive to install if multiple water hammer arrestors are needed.
- May require a professional plumber to install.
Method 3: Secure Loose Pipes
Advantages:
- Relatively easy and inexpensive to do.
- Can prevent other plumbing issues caused by loose pipes, such as leaks or bursts.
Disadvantages:
- Requires access to pipes, which can be difficult in some cases.
- May not solve the problem if water hammer is caused by other factors.
Method 4: Drain and Refill the Air Chambers
Advantages:
- Relatively easy and inexpensive to do.
- Can prevent other plumbing issues caused by waterlogged air chambers, such as leaks or bursts.
Disadvantages:
- May not solve the problem if water hammer is caused by other factors.
- Requires access to air chambers, which can be difficult in some cases.
Method 5: Install a Pressure-Reducing Valve
Advantages:
- Effective in regulating and reducing water pressure, preventing water hammer and other plumbing issues.
- Can improve the lifespan of your plumbing system and appliances.
Disadvantages:
- Can be expensive to install.
- Requires access to main water supply, which can be difficult in some cases.
Frequently Asked Questions
1. What is Water Hammer?
Water hammer is a banging noise that occurs when the water flowing in a pipe suddenly stops or changes direction, causing a shockwave that hits against the valves, fittings, and walls.
2. What causes Water Hammer?
Water hammer can be caused by high water pressure, loose or damaged pipe straps, closed valves, waterlogged air chambers, or excessive water velocity.
3. Can Water Hammer damage my plumbing system?
Yes, water hammer can cause damage to your pipes, joints, and fixtures over time if left untreated.
4. How do I know if my pipes have Water Hammer?
If you hear a loud banging or rattling noise whenever you turn off a faucet or any water outlet in your home, you may have water hammer.
5. Can I fix Water Hammer myself?
Yes, there are several methods you can use to get rid of water hammer, depending on the cause and severity. However, some methods may require professional help.
6. What is a Water Hammer Arrestor?
A water hammer arrestor is a device that absorbs the shockwave caused by water hammer, preventing it from damaging your plumbing system and producing noise.
7. Where can I buy Water Hammer Arrestors?
You can buy water hammer arrestors at plumbing supply stores or online retailers.
8. How much do Water Hammer Arrestors cost?
The cost of water hammer arrestors varies depending on the brand and type. On average, they can cost between $10 and $50.
9. Can I install Water Hammer Arrestors myself?
Yes, water hammer arrestors are easy to install and can be attached to your washing machine, dishwasher, or any other appliance that uses water.
10. How often should I drain and refill my Air Chambers?
You should drain and refill your air chambers every year to ensure their effectiveness.
11. Can Water Hammer occur in a new house?
Yes, water hammer can occur in a new house if the plumbing system is not properly installed or if the water pressure is too high.
12. Can Water Hammer go away on its own?
No, water hammer will not go away on its own and can cause damage to your plumbing system if left untreated.
13. What should I do if none of the methods work?
If none of the methods work, you should seek professional help from a licensed plumber who can diagnose the problem and provide a solution.
Conclusion
Water hammer can be a frustrating and even damaging plumbing issue that can affect your daily life. Fortunately, there are several methods you can use to get rid of water hammer and prevent it from happening again, including lowering the water pressure, installing water hammer arrestors, securing loose pipes, draining and refilling the air chambers, and installing a pressure-reducing valve. Each method has its advantages and disadvantages, so it’s essential to choose the one that suits your needs and budget. Remember, ignoring water hammer can lead to more significant plumbing issues, such as pipe bursts and leaks, so don’t hesitate to take action.
Closing
We hope this article has been helpful in providing you with the information you need to get rid of water hammer and prevent it from happening again. Remember, proper maintenance and timely repairs are essential to keeping your plumbing system functioning correctly and preventing costly damages. If you have any questions or concerns, please consult a licensed plumber for professional advice.
