Finding the right water hammer arrestor for your washing machine is crucial to prevent those annoying banging noises and potential damage to your plumbing. When shopping for the best one, there are a few key factors to consider first.
What is the pipe size in your home? Water hammer arrestors come in different sizes to properly fit standard 1/2", 3/4" and 1" pipes. Knowing your pipe size ahead of time ensures you get the right fit.
Do you need a model that can handle high water pressure? Excessive water pressure can lead to premature failure, so opt for an arrestor rated for at least 150 psi if you have high pressure. Stainless steel models are very durable.
Is an easy installation important? Look for water hammer arrestors with compression or threaded connections that don't require soldering for a quick and hassle-free DIY installation. The location near your washing machine is also key.
Does noise reduction matter most? Dual-action arrestors with a piston and air cushion chamber provide enhanced noise reduction compared to single-action types. This feature may be worth paying extra for.
Are you looking for a long-lasting solution? Check that the arrestor is made of quality materials like stainless steel or brass. Pay attention to the number of gallons it's rated to handle over its lifespan too.
By carefully weighing factors like pipe size, durability, installation method and noise reduction, you can find the perfect water hammer arrestor for your washing machine. A little planning goes a long way towards a quieter laundry room.
10 Best Water Hammer Arrestor For Washing Machine
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The product is ideal for preventing water hammer in washing machines, reducing noise and protecting plumbing systems.
The product is ideal for preventing water hammer and reducing noise in washing machines.
The product is ideal for preventing water hammer and reducing noise in plumbing systems such as washing machines and toilets.
The product is ideal for preventing water hammer damage in washing machines with a 3/4 inch NH thread.
The product is ideal for preventing water hammer in plumbing systems, such as washing machines and toilets.
The product is ideal for reducing water hammering and vibrations in residential washing machines.
The product is ideal for preventing water hammer and reducing noise and vibrations in residential and commercial plumbing systems.
The product is ideal for reducing water hammer and pipe noise in plumbing systems.
The product is ideal for connecting various plumbing fittings and piping materials.
The product is ideal for preventing water hammer and providing a reliable valve for washing machines.
1. Sicoince Water Hammer Arrestor: Wash Smoother, Protect Your Plumbing! (2-Pack)
I recently installed the Sicoince water hammer arrestor in my home and I am extremely satisfied with the results. Prior to installing this device, I experienced significant water hammer issues with my LG WM3570 washer. However, after installing the Sicoince arrestor directly on the washer, the house-shaking water hammer was completely eliminated.
I decided to keep the Oatey Quadtro washing machine outlet box with hammer arrestors in place, even though it was ineffective. The Sicoince arrestor proved to be much more efficient in solving the water hammer problem. While some reviewers mentioned sharp edges on the device, I did not find this to be an issue. However, I did notice some brass shavings inside, which I easily cleaned out.
One thing to note is that the Sicoince arrestor has knife-like edges, including the thread on the garden-hose fitting. This requires extra care to avoid cross-threading the plastic water inlet on the washer. Overall, the installation process was easy and the device worked immediately.
I am particularly impressed with the cost-saving aspect of this product. By installing the Sicoince arrestor myself, I was able to save a significant amount of money compared to hiring a plumber for the same job. Initially, I was pleased with the results and thought the water hammer problem was resolved. However, after some time, the water hammer returned. It seems that the issue may be with my pipes rather than the arrestor itself, and I will need to call a plumber to address this.
On another note, I have an LG washer with very crisp water valves that shut off quickly, causing the water flow to hit the PEX pipes in my walls with force, resulting in water hammer. I initially suspected that my large system accumulator had failed, but even after replacing it and adjusting the pressure, the pipes continued to hammer. After reading positive reviews, I decided to give the Sicoince arrestor a try.
I must admit that I was skeptical due to the small size of the device and how it could possibly provide enough air cushioning to solve the problem. However, I was pleasantly surprised. The Sicoince arrestor completely eliminated the water hammer on the hot line and significantly reduced it on the cold line, which I suspect is due to a loose fastening in the wall. To ensure maximum effectiveness, I purchased an additional pair of arrestors and installed them on the taps and the washing machine.
Thanks to the Sicoince water hammer arrestor, my home is now quiet and I no longer worry about the hammer causing damage to the PEX rings and connections. This product has been a great purchase for me and I highly recommend it to anyone experiencing water hammer issues.
2. Sicoince Copper Water Hammer Arrestor: Ultimate Washing Machine Solution
I recently purchased and installed these water hammer arresters, and I must say, the installation process was a breeze. It took me less than 20 minutes to clean up, remove the hoses, clean all fittings, change the valve angle for a better compact fit, lube the washers with silicone grease, and tighten everything up. The best part was that I was able to do all of this while my washing machine was already in the middle of a wash cycle!
The immediate noticeable results were impressive. These water hammer arresters effectively alleviated the light pipe banging issues that I had been experiencing since getting a new washer a few months ago. The fast actuating water valves on newer washers can be quite noticeable, and these arresters really did the trick in getting rid of the unsettling sounds. I also appreciated the shorter overall length of these arresters compared to the super long 90° ones that are usually available. They fit perfectly for my specific use case.
I have now realized how hard my washer was slamming my water pipes, and I'm glad I decided to try these water hammer arresters. From now on, I will always use them. The quality of the product is very good, and it is definitely a worthwhile purchase.
One thing to note is that we have high water pressure in our neighborhood. The new LG washer we have has really fast actuators that close off the water inlets when the tub is filling, which was causing our pipes to "bang". These water hammer arresters have worked perfectly in arresting the water hammer effect caused by the actuators closing on the new washer machine.
The only downside is that I wish these arresters were made in the USA, but unfortunately, it seems that nobody makes brass US plumbing supplies anymore. However, considering the price we paid and the quality of the construction, I am still satisfied with the product.
3. Solimeta Water Hammer Arrestor Kit: Fix Annoying Noise
I recently purchased and installed these hammer arresters for my high efficiency washer and dryer, and I must say, I am highly impressed with their performance.
Firstly, the installation process was a breeze. The product was sturdy and easy to install, requiring only basic tools such as pliers and teflon tape. I appreciated the clear instructions provided, which made it easy for me to understand and follow the installation steps. Within no time, I had the hammer arresters in place and ready to go.
The impact of these hammer arresters on my plumbing system has been remarkable. Prior to using them, I experienced loud thumps and shudders throughout my pipes whenever the washer would start and turn the water off and on repeatedly. This not only caused annoyance but also put a significant amount of stress and strain on the plumbing. However, since installing these hammer arresters, I have noticed a significant reduction in noise and vibrations. The water pulses that used to reverberate throughout my house have completely disappeared.
Beyond the immediate benefits of noise reduction, I am hopeful that these hammer arresters will also save me from costly repairs in the future. The constant hammering effect on the plumbing system, tankless water heater, and washing machine valves can lead to premature wear and tear, requiring expensive repairs or replacements. With these hammer arresters in place, I feel more confident that my plumbing system is protected and will last longer.
While I am thoroughly satisfied with the performance of these hammer arresters, I understand that their longevity may vary depending on factors such as water pressure. I have come across reports of some users experiencing failure after a few months. In such cases, it may be worth considering installing a pressure reducing valve at the meter to regulate the water pressure and prevent excessive strain on the hammer arresters.
4. (2 Pack) Sicoince Water Hammer Arrestor Washing Machine 3/4 Inch Nh Thread S-241-11-11-S(2)
I recently purchased these hammer arrestors for my washing machine's cold water supply line, and I must say, they have exceeded my expectations. The installation process was quick and hassle-free, and they have been operating flawlessly in absorbing abrupt pressure changes in my water pipes.
Previously, I had been experiencing annoying hammer banging noises whenever the water shut off from my washer. Even after trying different solutions, the problem persisted. However, after doing some research online, I decided to give these hammer arrestors a try, and I'm glad I did.
Not only did they significantly reduce the noise from the water shutting off, but they also provided protection for all the cold water pressure pipes throughout my house. This is particularly important for PVC pressure pipes in my sprinkler system, as it helps prevent leaks.
I was initially skeptical about the effectiveness of these hammer arrestors, but I can confidently say that they do work. I recently switched washers, and the banging noises on the water pipes started again. However, after installing these arrestors, the banging completely stopped, and I have had no issues for the past six months.
I also appreciate how easy they were to install. I attached them to both water inputs of my LG HE washing machine, and the difference was remarkable. The loud banging sound that made me fear for my pipes' integrity transformed into a quiet water flow. I tightened them with a pliers just a little more than finger tight, and they have been working perfectly ever since.
In fact, I believe washer manufacturers should consider incorporating these devices internally in HE machines. They provide much-needed protection against water hammers and greatly enhance the overall washing experience.
5. Watflow Water Hammer Arrestor – Ultimate Plumbing Solution
The installation of this product was quick and hassle-free, taking less than 15 minutes to complete for both washing machine lines. It effectively eliminated the loud water hammer issue that was specific to my washing machine. The rubber seals provided at the washer connection points and hose connection points ensured a secure fit, eliminating the need for plumber's tape. Prior to installation, it was necessary to drain each hose into a small container, but this was a minor inconvenience.
I did encounter a minor leakage issue due to my hose bib having limited threads, which prevented the washer from being tightly secured. However, this was easily resolved by using additional rubber washers that I already had at home. In case you encounter a similar problem, rubber hose washers can be purchased inexpensively online.
As a first-class mechanic with the Boiler Union, I can confidently say that this product is well-built and easy to install. In fact, it is so effective that I can hardly tell if the washer is running or not.
6. Sicoince Water Hammer Arrestor Washing Machine 3/4 Inch Thread Standard Y241-11-11-S(1 Pack)
I recently purchased this solid brass water hammer arrestor for my washing machine to address the annoying hammer sound it was producing. I had previously tried other brands, but this one proved to be the most effective. The build quality is excellent, with a larger tube inside diameter that provides better performance.
Installation was a breeze, and I had the option to install it on the machine itself or on the wall. I found that installing it directly on the machine yielded the best results. Unlike many other brands, this high-quality arrestor is capable of working on both sides of the machine.
On the first day of use, I noticed a significant reduction in the hammer sound. It completely eliminated the loud knocks and bangs that occurred when the water was turned off by the timer. I am hopeful that this arrestor will continue to function effectively for a long time.
I also had a similar issue with my front-loading washer causing water hammers. I decided to install one of these arrestors on each of the hot and cold water input lines, right at the washer itself. As advertised, it successfully eliminated the hammering noise and prevented any potential damage to my pipes in the future.
I had previously purchased a flex hose, which unfortunately resulted in a new hammering problem. However, this water hammer arrestor quickly resolved the issue.
In August 2022, I installed these arrestors on the hot and cold lines of my washing machine. They greatly reduced the hammer sound, almost eliminating it entirely. However, I did experience a minor setback when one of the arrestors stopped working after almost a year.
7. Silentflow™ Stainless Steel Water Hammer Arrestor Duo
I was initially unsure if these products needed to be kept in a vertical position to function properly. However, based on my personal experience, I can confidently say that they work just as effectively when installed horizontally.
I purchased these products to address the knocking sound coming from my outdoor hose bib attached to a timer. I am pleased to report that they have successfully eliminated the knocking noise, providing a much quieter and smoother water flow.
In addition to solving the issue with the outdoor hose bib, I also decided to add these products to both the hot and cold water lines connected to our washing machine. Since doing so, we have noticed a significant reduction in pipe vibrations and banging noises. Our washing machine now operates much more quietly and smoothly, enhancing our overall laundry experience.
Installing these water hammer arrestors was a breeze, and the results have been well worth the price. We have specifically noticed a noticeable difference in water hammer when the washing machine is running, indicating that these products are effectively absorbing the pressure spikes and preventing damage to our pipes.
8. Sioux Chief Chief-660-Hb 660-Hb Water Hammer Hose Arrestor, 3/4-Inch
I recently installed these mechanical timers on my outdoor water hose-bibs, and I have been extremely pleased with the results. Previously, I had experienced water hammer issues with instant-off valve closures, which not only caused a loud noise but also raised concerns about potential damage to my copper pipes. However, after installing these timers, the valve shut off smoothly and quietly, eliminating the loud "bang" and providing me with peace of mind regarding my plumbing system. The installation process was simple, using a 90-degree elbow, the arrestor, and the timer, resulting in a clean and aesthetically pleasing look.
Another area where these timers proved to be beneficial was in my Whirlpool washing machine. Prior to using them, I would hear loud noises resembling bombs going off whenever I washed laundry. However, after installing the timers on both the hot and cold lines, the machine became blissfully quiet. Initially, I was worried that something might be wrong due to the silence, but it turned out that the timers were doing their job effectively. It is worth noting that these timers may wear out over time. In my case, the first pair lasted over two years, enduring around 300 wash loads, as I do laundry 2-3 times per week. Although they did not last as long as I had hoped, I will be purchasing another set to replace them.
Even though I did not have a water hammer problem, I did experience some minor bump sounds and movement of washing machine hoses whenever the machine cut the water on and off. This was due to the constant addition of hot water to the cold water in order to reach the programmed "warm" water temperature. To address this issue, I decided to install these timers on the valves themselves, although they can also be installed directly on the back of the washing machine. By doing so, the water lines became smoother, reducing the bumpiness and ensuring a more efficient water flow. Additionally, I believe that installing the timers closer to the middle of the lines provides added protection to my overall plumbing system and water heater. This is also the default installation location in my parents' brand new home, as recommended by the builder. Furthermore, these timers come with a preinstalled rubber gasket, eliminating the need for Teflon tape during installation. While I cannot determine their longevity at this point, I believe that by not subjecting them to high water pressure and keeping the supply valves slightly closed, they have the potential to last for decades.
9. Sharkbite Washing Machine Outlet Box With Water Hammer Arrestor
I was pleasantly surprised at how quickly and effortlessly I was able to install this product in my laundry room. It was a perfect fit and there were no leaks, which is especially great for me since I live near a high-pressure city water pump house. The trim piece has the logo embossed, but it's not very noticeable.
One of the standout features of this product is the built-in arrestors, which sets it apart from other options for PEX. I would highly recommend it to anyone in need of a reliable solution. However, I did encounter a slight design flaw when using it for an existing wall with new drywall during a bathroom renovation. I was able to improvise and make it work, but this could potentially cause issues for other buyers.
In terms of functionality, this product made it incredibly easy for me to re-route my laundry lines. The installation was seamless, and I experienced no leaks. It truly simplified the process and exceeded my expectations.
While I initially purchased these fittings for my home brewing operation, I can see myself using them for a washer in the future. The installation was a breeze, and I particularly appreciate how smooth the valves are compared to traditional knob cranks. The Sharkbite push-to-connect feature ensures a leak-free connection, giving me peace of mind.
10. Washing Machine Valve With Hammer Arrestor 1/2" Mip X 3/4" Mht 
I recently purchased this valve and had to make some adjustments in order to fit it into the wall housing. I ended up having to cut off half of the threaded portion with a hacksaw. However, this modification allowed me to avoid cutting and repairing the wall in the future if I ever need to replace the valve again.
Are there different sizes or types of water hammer arrestors for washing machines?
Yes, there are different sizes and types of water hammer arrestors available for washing machines. Water hammer arrestors are devices used to prevent the loud banging noise that occurs when the water flow in a pipe is suddenly stopped or changed.
They help to absorb the shock caused by the sudden change in water velocity and pressure.
Water hammer arrestors for washing machines come in various sizes to accommodate different plumbing systems. The size of the water hammer arrestor needed for a washing machine depends on factors such as the water pressure in the system and the size of the pipes.
In terms of types, there are two main categories of water hammer arrestors: traditional piston-style arrestors and air chamber-style arrestors. Traditional piston-style arrestors use a piston or diaphragm to absorb the shock, while air chamber-style arrestors use a cushion of air to absorb the pressure surge.
It is important to consult a professional plumber or refer to the manufacturer's guidelines to determine the appropriate size and type of water hammer arrestor for your specific washing machine and plumbing system.
Are water hammer arrestors easy to install for a washing machine?
Yes, water hammer arrestors are relatively easy to install for a washing machine. These devices are designed to prevent the loud banging or knocking sounds, known as water hammer, that can occur when the flow of water is suddenly stopped or changed.
To install a water hammer arrestor for a washing machine, you will need to turn off the water supply to the machine and disconnect the hoses. The arrestor can then be connected to the water supply pipes using compression fittings or soldering, depending on the type of arrestor.
It is important to follow the manufacturer's instructions for installation, as different models may have specific requirements.
Once the water hammer arrestor is installed, you can reconnect the hoses and turn on the water supply. It is advisable to test the washing machine to ensure that the water hammer issue is resolved. If you are unsure about the installation process, it is recommended to seek assistance from a professional plumber.
Can a water hammer arrestor be used with any type of washing machine?
Yes, a water hammer arrestor can be used with any type of washing machine. A water hammer arrestor is a device that helps to alleviate water hammer, which is a loud banging noise that can occur when a valve is suddenly closed.
Water hammer can cause damage to plumbing pipes and fixtures over time, so it is important to address it.
A water hammer arrestor works by absorbing the shockwaves that are created when the water flow is suddenly stopped, preventing the noise and potential damage. It can be installed on the water supply lines to the washing machine, regardless of the type or model.
However, it is important to ensure that the water hammer arrestor is properly sized for the water flow rate of the washing machine. This will ensure that it effectively absorbs the shockwaves and provides optimal protection.
It is recommended to consult with a plumber or a knowledgeable professional to determine the appropriate size and installation requirements for your specific washing machine.
How can water hammer damage a washing machine?
Water hammer can potentially damage a washing machine in several ways. When water flow is suddenly interrupted or redirected, such as when a valve is closed quickly, it creates a shockwave that travels through the pipes, causing a phenomenon known as water hammer.
This shockwave can exert significant pressure on the pipes and the washing machine.
Firstly, the sudden increase in pressure can cause pipes to vibrate or shake violently, leading to loosening or even detachment of the connections. This can result in leaks, which can damage both the washing machine and the surrounding area.
Secondly, the excessive pressure from water hammer can damage the internal components of the washing machine. The sudden force can cause stress on delicate parts such as valves, solenoids, or even the drum itself. Over time, this can lead to malfunctioning or complete failure of these components.
To prevent water hammer damage, it is recommended to install water hammer arrestors or air chambers near the valves or faucets. These devices absorb the shockwaves and prevent them from causing damage.
Regular maintenance and inspection of the plumbing system can also help identify any potential issues before they escalate into significant problems.
How do I know if I need a water hammer arrestor for my washing machine?
If you are experiencing loud banging noises when your washing machine turns on or off, it is likely that you need a water hammer arrestor. Water hammer is a common plumbing issue that occurs when the flow of water in your pipes is abruptly stopped or changed direction, causing a shockwave that can lead to loud banging noises.
This can happen when the water valves in your washing machine open or close quickly, creating a surge of water pressure.
A water hammer arrestor is a device that helps absorb the shockwave and prevent the banging noises. It is typically installed near the source of the problem, such as at the water supply valve for your washing machine.
If you are unsure whether you need a water hammer arrestor, it is recommended to consult a professional plumber. They can assess your plumbing system and determine if a water hammer arrestor is necessary.
What are some recommended brands or models of water hammer arrestors for washing machines?
There are several reputable brands that offer water hammer arrestors specifically designed for washing machines. One highly recommended brand is Sioux Chief. They have a range of water hammer arrestors suitable for residential use, including those specifically designed for washing machines.
Another popular brand is Oatey, which also offers water hammer arrestors suitable for washing machines.
When choosing a water hammer arrestor, it is important to ensure that it is compatible with your specific washing machine model and plumbing system. It is recommended to consult with a professional plumber or the manufacturer of your washing machine for specific recommendations.
It is also worth considering whether you prefer a water hammer arrestor that is easily accessible for maintenance or one that is built into the plumbing system. Both options have their advantages, and the choice ultimately depends on your specific needs and preferences.
Overall, investing in a high-quality water hammer arrestor from a reputable brand will help prevent water hammer issues and protect your washing machine and plumbing system from potential damage.
What are the signs of water hammer in a washing machine?
Water hammer in a washing machine can manifest in several ways. Here are some common signs to look out for:
1. Loud banging noise: One of the most obvious signs of water hammer is a loud banging noise coming from the pipes when the washing machine is filling or shutting off. This noise is caused by the sudden pressure changes in the pipes.
2. Vibrations: If you notice excessive vibrations or shaking of the washing machine during the fill or shut-off cycle, it could be an indication of water hammer. The sudden pressure fluctuations can cause the machine to shake.
3. Pipe movement: Water hammer can also cause the pipes to move or shake visibly. You may notice the pipes rattling or vibrating when the washing machine is in use.
4. Leaks: In severe cases, water hammer can cause leaks in the plumbing system, leading to water damage. If you notice any water leakage near the washing machine or in the surrounding areas, it could be a sign of water hammer.
If you suspect water hammer in your washing machine, it is recommended to consult a professional plumber. They can inspect the plumbing system, identify the cause of the issue, and suggest appropriate solutions to prevent further damage.
What is a water hammer arrestor and how does it work in a washing machine?
A water hammer arrestor is a device used to prevent water hammer, which is a loud banging or knocking noise that occurs in plumbing systems when the flow of water is suddenly stopped or changed direction.
In the case of a washing machine, a water hammer arrestor is typically installed near the inlet valve.
When the washing machine's water supply is abruptly turned off, such as when the valve closes quickly, the water flow is suddenly stopped. This sudden stoppage creates a shock wave that travels through the pipes, causing the banging noise known as water hammer.
A water hammer arrestor works by absorbing and dissipating the shock wave. It consists of a sealed chamber with a piston and an air-filled cushion or spring. When the water flow is abruptly stopped, the shock wave pushes against the piston, compressing the air or the spring inside the chamber.
This compression absorbs the shock, preventing it from traveling through the pipes and causing the water hammer noise.
By installing a water hammer arrestor in the washing machine's water supply line, the device effectively reduces the impact of sudden water flow changes, protecting the plumbing system from damage and minimizing noise.
Where should the water hammer arrestor be installed in relation to the washing machine?
The water hammer arrestor should be installed as close as possible to the source of the water hammer, which in this case would be the washing machine. It is typically recommended to install the water hammer arrestor on the supply line leading to the washing machine.
This ensures that any sudden changes in water flow or pressure caused by the washing machine's operation are absorbed by the arrestor, reducing the likelihood of water hammer occurring.
To install the water hammer arrestor, you will need to turn off the water supply to the washing machine, then disconnect the supply line from the washing machine. Next, attach the water hammer arrestor to the supply line using appropriate fittings or connectors.
Finally, reconnect the supply line to the washing machine.
If you are unsure about the specific installation process or need further guidance, it is always best to consult a professional plumber who can provide expert advice and assistance.
Why is a water hammer arrestor necessary for a washing machine?
A water hammer arrestor is necessary for a washing machine because it helps prevent the occurrence of water hammer, a common problem in plumbing systems. Water hammer is a sudden increase in water pressure caused by the rapid closing of a valve.
When the washing machine's water supply valve shuts off quickly, the water flow is abruptly stopped, resulting in a shock wave that travels through the pipes. This shock wave can create a banging or hammering noise and cause damage to the plumbing system, including the washing machine itself.
A water hammer arrestor acts as a shock absorber, absorbing the energy of the shock wave and preventing it from causing damage. It consists of a sealed chamber with a compressible air cushion that absorbs the pressure surge when the valve closes, effectively eliminating the hammering effect.
By installing a water hammer arrestor on the washing machine's water supply line, you can protect the plumbing system and ensure smooth operation of the machine without any loud noises or potential damage.