34 E Germantown Pike,

Norristown, PA 19401

Mon-Sat 7:00am-7:00pm

Sunday 10:00am-6:00pm

Mon-Sat 7:00am-7:00pm

Sunday 10:00am-6:00pm

34 E Germantown Pike,

Norristown, PA 19401

5 Practical Steps for Fixing Water Hammer Issues in Your Plumbing

The Perfect Device to Help Solve Plumbing System Water Noises and also Water Hammer in Home Piping

In some plumbing systems when a tap or an automated valve like in a washing machine ends the water too quick, it attempts to keep going and you get a banging vibration throughout your house. The pipelines are really moving and also hitting something. This banging force can be strong enough to damage pipe joints apart which could create real problems.

This phenomenon is known as a “Water Hammer” which can be fixed by putting a unique air chamber device (shock arrestor) on the affected valve. This process provides the water somewhere to go because the air is compressible.


A water hammer issue can happen all of a sudden, mainly when shutting down a kitchen or bathroom faucet or any other faucet very quickly. It basically produces some vibrations through the  pipelines which causes the hammer noises.


These sounds are comparable to shock waves that will make fixtures, pipelines and faucets to vibrate. Technically, this event is a type of hydraulic shock, caused by too much water force within the pipelines.


A water hammer actually is rather an bothersome issue, but is also one that can cause damages to the system. Nevertheless, the most reliable option to fix this issue is by mounting a water hammer/hydraulic shock arrestor. This device can be easily mounted in different types of supply lines.

Plumber-Water Hammer Arrestor

Sources Of Water Hammer In Your Pipes.

Plumbers Near Me-5 Helpful Steps for Fixing Plumbing Water Hammer Problems

This hydraulic shock effect of water hammers can be the most common sound problem in a system. It normally happens when some appliances or faucets very quickly shut down the water flow.


The rate of speed at which water flow is stopped is what results in those shock-waves which makes the supply lines bang against each other and mounting members such as floor joints and also wall surface studs or on each other.

This problem can likewise arise from other appliances or fixtures, such as washing machines and also dish washers. These cleaning units normally include solenoid valves which shuts off water flow very fast such that it goes from on off within a second.


These suggestions may be of excellent value, the hammer trouble may be more than it may appear. Need this done right the first time? An emergency plumber will be your most ideal choice to handle this type of trouble.

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A Traditional Resolution for Taking Care Of A Water Hammer

Older houses normally have water lines with pipe installations known as chambers. These chambers lie on cold and also hot water lines near each inlet valve or faucet.


The chambers are rarely noticeable, other than where the room could be incomplete such as in utility rooms. Or else, the chambers are concealed within wall surfaces along other plumbing lines.

Plumber-Basic Components of a Plumbing Fixture

When water flows under high force and also rate of speed, the duty of these air chambers are to act as shock absorbers. Primarily, the air compresses whereas water does not. The air in the chamber is pressed by the water force, making the water force halt once the faucet or appliance switches off the water flow very quickly.


Shock waves from the very pressurized water hit the very pressed air in the chamber instead of hitting the water pipes. Most of the times, the chambers are made and also mounted on-site before the section where the water lines reach the faucets is closed off. These chambers normally have a length of around 12 inches or longer, with a similar diameter size to that of the pipelines.


If makeshift chambers get filled up with water with time, the air that operates as the shock absorber gets eliminated. It’s possible to charge these chambers that have become loaded with water by merely shutting off the water of the affected pipelines and then draining all water from the pipelines. By doing so, the air is permitted to flow back again into the chamber to load it up again.


Once the water gets switched on, the air is then entrapped in the chamber. If this method fails and does not function, then, it will best to mount water hammer/hydraulic shock arrestors near each faucet.

Plumbing-Air Chamber Diagram

How to Use Water Hammer/Hydraulic Shock Arrestors

One of the most long-lasting and also reliable method of removing the trouble of water hammers in water lines is mounting hydraulic shock arrestors on supply lines that make sounds.


These arrestors function like air chambers, but they include a closed gas or air-filled chamber. The seal is normally produced by a piston or diaphragm.


The piston or diaphragm will move in the event of a “water hammer” situation, thereby absorbing the shock while making sure the gas or air and also water are always separated.

Directions for Installation:.

Materials and also Tools Needed:

Listed here are the basic supplies and also devices needed to mount a hydraulic shock absorber:


  • Towel or pail
  • An adjustable wrench or tongue/groove pliers
  • Water hammer/hydraulic shock arrestors (their number must be as needed).
  • Plumber’s tape.


Step 1: Turn off the primary supply of water valve.

Close the primary water supply or merely the water valve leading to the dishwasher, toilet, or the washing unit by using the valve near the fixture or appliance.


The majority of appliances featured 2 valves for shutting down the water flow, one for the cold water line and another for the warm water line. Toilet have normally only one valve.


Dish washers normally have one valve on the hot water line. Just turn the water valve clockwise until it’s firmly closed. Make sure to entirely stop the water flow between the fixture or appliance and the valve.

Step 2: Disconnect the supply of water tubes.

Take a towel or pail and place under or around the work area in order to catch all water that may splash. Now, disconnect the hose or tube that provides water to the appliance, shutoff, or fixture valve.


The arrestors must be mounted onto either the inlet of the fixture or on the appliance or the valve outlet. It’s most ideal to mount the arrestor closest to the fixture or appliance.


Use tongue/groove pliers to loosen tight supply tubes. You can likewise make use of a wrench (variable one) to loosen all tight compression nut that links the tube or pipe to the valve.

Step 3: Wrap the water inlet or valve male threads with plumber’s tape.

Use tape to cover the water inlet or valve male threads (depending upon the area you detached the supply tubes or pipe). You can make use of thread-seal or Teflon tape known as plumber’s tape. Wrap it clockwise around the strings for 3 to 4 times as well as the arrestor’s male threads the same way.

Step 4: Install the hydraulic shock arrestors.

Take the arrestor and thread it onto the inlet or valve while revolving the female fixture or fitting clockwise until it’s hand-tight. In case you’re dealing with compression installations on the toilet or dishwasher valve, affix the tubes of the arrestor into each compression installation.


Now, slide each compression ring onto the valve and thread the arrestor tubes into the fitting while sliding the ring onto the valve. Next, thread the arrestor onto the compression installation’s nut by utilizing the  tongue/groove pliers to tighten the arrestor onto the fitting, then make use of an adjustable pipe wrench to tighten the nut.

Step 5: Reconnect the supply hoses or tubes.

Connect each water hose or tube to each arrestor by using the tongue/groove pliers or an adjustable pipe wrench to tighten them. You can now switch on water flow from where you turned it off, be it from the primary valve or the valve close to the appliance. Switch the valve on until it’s entirely open.


You can now purge your toilet or run the dishwasher or washing unit for a cycle to test whether the arrestors are working properly. Check the links for any leaks and tighten up all with a wrench or pliers. Speak to a professional plumber if you encountered an issue and need help.

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