Have you ever heard a loud banging sound from your laundry room right after the washing machine stops filling? That sudden, jarring noise is called water hammer, and it can actually damage your pipes over time. It happens because water, which is heavy, stops moving very quickly when your washing machine’s fast-closing valves snap shut.
Choosing the right water hammer arrestor for your washing machine might seem confusing. You see different sizes, brands, and installation methods, and it’s easy to feel lost. You want quiet operation and protection for your home’s plumbing without spending too much money or installing something complicated. Getting this small part right stops those annoying bangs for good.
This guide cuts through the confusion. We will clearly explain what these devices do and show you exactly which features matter most for washing machine hookups. By the end of this post, you will know exactly which arrestor to buy and how to install it easily. Let’s dive in and quiet those pipes for good!
Table of Contents
Top Water Hammer Arrestor For Washing Machine Recommendations
- 2 Pieces Stainless Steel Water Hammer Arrester For Washing Machine Supply Valves or Directly to Washing Machine Tube Connection:
- 3/4 inch Female Swivel Hose Thread x 3/4 inch Male Hose Thread; Max working pressure: 250 PSI
- Can be Installed Horizontally or Vertically
- Aborb the Unstable Water Shock and Noise to Protect Washing Machine Control System
- Low lead Brass made body
- 2 Pieces Angle Stainless Steel Water Hammer Arrestor For Washing Machine Supply Valves or Directly to Washing Machine Tube Connection:
- 3/4 inch Female Swivel Hose Thread x 3/4 inch Male Hose Thread; Max working pressure: 250 PSI
- Can be Installed Horizontally or Vertically
- Aborb the Unstable Water Shock and Noise to Protect Washing Machine Control System
- Low lead Brass made body
- Straight – straight compression arresters install on any ½" nom. Copper leg or riser and are especially popular in retrofitting ½" nom. Air chambers
- Straight – straight sweat arresters are compatible with press-fitting systems, such as viega propress and all push-fitting systems
- Straight – pex miniresters are available with F1807, F1960 and viega pexpress connections
- Tee – hose tee arresters install on washing Machine supply valves or directly to washing Machine
- Tee – full slip tee sweats in-line on ½" cts near problem valve or Fixture
- The water hammer arrestors are easy to install on the washing machines and washing machine outlet box.
- Solving water hammer issues, absorb shock and reduce noise, pretect washing machines and water supply lines.
- 2 pieces in box. 3/4 inch male thread and 3/4 inch famale thread.
- Compliant with US regulations.
- If you have any quality problems, please contact us immediately, we will actively deal with.
- 【PACKAGE INCLUDES】: 3/4" GHT Straight Stainless Steel Water Hammer Arrestor*2; Sealing Tape*1.
- 【3/4" GHT WATER HAMMER ARRESTOR】: This straight water hammer arrestor connects 3/4" GHT Male and 3/4" GHT Female pipe or fitting. Its MAX working pressure and temperature can be rated up to 250 PSI and 180°F.
- 【PROTECT YOUR PIPES】: SUNGATOR 3/4" straight water hammer arrestor can prevent pipes from shaking and banging, reduce the unstable water pressure and noise, thus protecting household plumbing system. This mini residential water hammer arrestor is used for washing machine, laundry washer supply valve, garden hose, outdoor spigot, etc.
- 【SAFE TO USE】: Conforms to American standards and meets cUPC and NSF requirements, our 3/4" premium washer hammer arrestor is safe for water distribution.
- 【LONG LASTING】: Forged from solid brass that delivers high corrosion and abrasion resistance performance, SUNGATOR 3/4" water hammer arrestor is excellent for pipe fitting system as it can withstand long period of wear and tear.
- 3/4" GHT WATER HAMMER ARRESTOR: This straight water hammer arrestor connects 3/4" GHT Male and 3/4" GHT Female pipe or fitting. The MAX working pressure and temperature can be rated up to 250 PSI and 180°F.
- Noise Reduction: This Water hammer arrestor washing machine prevent pipes from shaking and pounding to reduce the unstable water pressure and noise.
- Long Lasting: The water hammer arrestors Made from high-quality C46500 brass, known for its high corrosion and abrasion resistance. This material ensures reliability and durability in residential environment.
- Safe To Use: SECKWHALE water hammer arrestor meets American standards and complies with UPC and NSF requirements, ensuring it’s safe for drinking water.
- Flexible Installation: This water hammer arrestor features a flexible design that meets different installation needs and can be installed either horizontally or vertically.
- 【PACKAGE INCLUDES】: 3/4" GHT Angle Stainless Steel Water Hammer Arrestor*2; Sealing Tape*1.
- 【3/4" GHT WATER HAMMER ARRESTOR】: This angle water hammer arrestor connects 3/4" GHT Male and 3/4" GHT Female pipe or fitting. Its MAX working pressure and temperature can be rated up to 250 PSI and 180°F.
- 【PROTECT YOUR PIPES】: Protect your washing machine control plumbing system with our 3/4" angle water hammer arrestor, which can prevent pipes from shaking and reduce noise. Mini residential water hammer arrestor, perfect for laundry washer supply valves or washing machine tube connections.
- 【SAFE TO USE】: Conforms to American standards and meets cUPC and NSF requirements, our 3/4" premium washer hammer arrestor is safe for water distribution.
- 【LONG LASTING】: Forged from solid brass that delivers high corrosion and abrasion resistance performance, SUNGATOR 3/4" water hammer arrestor is excellent for pipe fitting system as it can withstand long period of wear and tear.
- Reduce noise：Our water hammer lightning arresters aborb the unstable water shock to reduce the operating noise of washing machines, toilets and dishwashers, and extend the service life of your pipes.
- Premium Construction: Space-optimized design with multidirectional installation capability (horizontal/vertical orientations). Making water hammer arrestor garden hose ideal for installation in tighter spaces.
- Certification Assurance: The Washing Machine Water Hammer Arrestor meets U.S. standards and complies with cUPC and NSF requirements, ensuring safety for both drinking water and water supply systems.
- Long Lasting: Forged from solid brass that delivers high abrasion resistance performance, 3/4" water hammer arrestor is excellent for pipe fitting system as it can withstand long period of wear and tear.
- What You Get:2 pcs straight water hammer arrestor washing machine, made of a lead-free brass body and stainless steel, with 3/4 inch Female Swivel Hose Thread x 3/4 inch Male Hose Thread, offering exceptional resistance to wear. The maximum operating water pressure and temperature are 250 PSI and 180°F
Choosing the Right Water Hammer Arrestor for Your Washing Machine
Do you hear a loud “thump” or “bang” when your washing machine suddenly stops filling or draining? That noise is called water hammer. It happens because fast-moving water slams into a closed valve. A water hammer arrestor stops this annoying noise and protects your pipes. This guide helps you pick the best one for your home.
Key Features to Look For
When shopping for a water hammer arrestor, you need to check a few important things. These features make sure the arrestor works well and lasts a long time.
- Connection Size: Make sure the arrestor fits your washing machine’s hose connection. Most use a standard 3/4-inch garden hose thread (GHT).
- Type of Mechanism: Most good arrestors use a sealed air chamber or a piston. Piston types often handle more pressure changes better.
- Installation Style: Some screw directly onto the supply valve. Others are T-shaped and fit between the valve and the hose. Direct screw-on models are usually easier for DIY installation.
- Lead-Free Construction: Always choose arrestors made from safe, lead-free materials like brass or high-grade plastic.
Important Materials Matter
The material an arrestor is made from greatly affects how long it lasts and how well it handles water pressure.
Metal vs. Plastic
- Brass/Bronze: These metals are very strong. They resist corrosion and handle high water pressure without breaking. They are usually the best, though they cost a bit more.
- High-Grade Plastics (e.g., ABS): Modern plastics can work well. They are cheaper and naturally resist rust. Ensure the plastic is thick and rated for plumbing use. Thin plastic might crack under strong pressure surges.
Factors That Improve or Reduce Quality
Not all arrestors are created equal. Look for signs of quality engineering.
What Makes Quality Better?
A high-quality arrestor holds its air charge longer. This means you do not have to recharge or replace it often. Look for models with strong sealing gaskets. These seals prevent air from leaking out over time. Arrestors tested and approved by recognized plumbing safety groups (like ASSE or IAPMO) offer better reliability.
What Lowers Quality?
Cheap, lightweight plastic bodies often fail first. If the internal piston is made of weak material, it can seize up quickly. Avoid arrestors that feel flimsy when you hold them. Poorly machined threads can lead to leaks, which reduces the arrestor’s effectiveness.
User Experience and Use Cases
How easy is it to use, and where do you need one?
Installation and Maintenance
For most homeowners, simple installation is key. If the arrestor screws on easily and seals tightly, the user experience is positive. Simple models require no maintenance. However, piston-style arrestors sometimes need to be “recharged” (pushing the piston back to reset the air cushion) every few years, though modern sealed units rarely need this.
When You Need an Arrestor
You definitely need one if you hear banging pipes when your washing machine fills. This is most common with modern, high-efficiency (HE) washers that fill very quickly. Install the arrestor right at the hot and cold water supply valves behind the washer. While primarily for washing machines, you can use similar devices for dishwashers or ice makers if they cause noise.
10 Frequently Asked Questions (FAQ) About Washing Machine Water Hammer Arrestors
Q: What exactly is water hammer?
A: Water hammer is the loud banging sound you hear when fast-moving water stops suddenly, like when your washing machine finishes filling.
Q: Will this device stop all pipe noises in my house?
A: No. It mainly stops the noise caused by the washing machine. It will not fix noises from other appliances or water flowing through slow leaks.
Q: Do I need two arrestors for my washing machine?
A: Yes, you should install one arrestor on the hot water line and one on the cold water line, as both cause noise when they shut off.
Q: How do I know if my arrestor is working?
A: If the loud banging noise stops after you install it, the arrestor is working correctly. If the noise continues, check the installation or consider a stronger model.
Q: Can I use a regular plumbing shock absorber instead of a dedicated arrestor?
A: Sometimes, but a dedicated washing machine arrestor is usually better designed for the specific connection size and flow rate of the washer.
Q: How long does a good water hammer arrestor last?
A: A high-quality brass arrestor can last ten years or much longer if the internal seal remains intact.
Q: What pressure rating should I look for?
A: Most homes run between 40 and 80 PSI. Look for an arrestor rated for at least 150 PSI to handle any pressure spikes safely.
Q: Is it hard to install these arrestors?
A: No, most are very easy. You just turn off the water, unscrew the hose, screw on the arrestor, and then screw the hose back onto the arrestor.
Q: What if my plastic arrestor leaks after I install it?
A: Turn off the water immediately. Check the rubber washer inside the connection point. If it looks damaged or crooked, replace the washer or the entire unit.
Q: Should I buy the cheapest one I see online?
A: We advise against it. The cheapest ones often use poor seals that fail quickly, meaning you will have to replace them sooner and potentially deal with leaks.