Water hammer destroyer: how an expansion tank can save your pipes

Water hammer is a common plumbing problem that can occur when water flow is suddenly stopped, causing a pressure surge that can damage pipes and fixtures. Expansion tanks are often used to prevent water hammer by absorbing the excess pressure. But do they really work?

What is Water Hammer?

Water hammer is a phenomenon that occurs when the flow of water in a pipe is suddenly stopped. This can happen when a faucet is turned off quickly, a washing machine or dishwasher cycle ends, or a water heater shuts off. When the water flow stops, the momentum of the water causes it to continue moving forward, creating a pressure surge. This pressure surge can cause pipes to vibrate and bang, and it can even damage fixtures and appliances.

What is an Expansion Tank?

An expansion tank is a device that is installed on a plumbing system to absorb excess pressure. Expansion tanks are typically made of steel or plastic, and they have a rubber diaphragm inside. When the pressure in the plumbing system increases, the diaphragm expands, allowing the excess water to flow into the tank. When the pressure decreases, the diaphragm contracts, pushing the water back into the plumbing system.

Does an Expansion Tank Prevent Water Hammer?

Yes, an expansion tank can prevent water hammer. By absorbing the excess pressure in the plumbing system, an expansion tank can reduce the amount of vibration and banging that occurs when water flow is stopped. This can help to protect pipes and fixtures from damage.

How to Choose an Expansion Tank

If you are considering installing an expansion tank to prevent water hammer, there are a few things you need to keep in mind. First, you need to determine the size of the tank you need. The size of the tank will depend on the size of your plumbing system and the amount of water flow that occurs. Second, you need to choose a tank that is made of durable materials. Third, you need to make sure that the tank is installed properly.

How to Install an Expansion Tank

Installing an expansion tank is a relatively simple process. However, it is important to make sure that the tank is installed properly. If the tank is not installed properly, it may not be able to function properly and prevent water hammer.

To install an expansion tank, you will need the following tools:

• Adjustable wrench
• Pipe wrench
• Teflon tape
• Hacksaw

Once you have the necessary tools, you can follow these steps to install the expansion tank:

1. Turn off the water supply to the plumbing system.
2. Cut the pipe where you want to install the expansion tank.
3. Apply Teflon tape to the threads of the expansion tank.
4. Screw the expansion tank into the pipe.
5. Tighten the expansion tank using an adjustable wrench.
6. Turn on the water supply to the plumbing system.

Benefits of Installing an Expansion Tank

There are several benefits to installing an expansion tank on your plumbing system. These benefits include:

• Prevents water hammer: Expansion tanks can help to prevent water hammer by absorbing the excess pressure in the plumbing system.
• Protects pipes and fixtures: By preventing water hammer, expansion tanks can help to protect pipes and fixtures from damage.
• Reduces noise: Expansion tanks can help to reduce the noise that is caused by water hammer.
• Improves water flow: Expansion tanks can help to improve water flow by reducing the amount of pressure that is lost due to water hammer.

Summary

If you are experiencing water hammer in your plumbing system, installing an expansion tank is a great way to prevent the problem. Expansion tanks are relatively inexpensive and easy to install, and they can provide a number of benefits, including preventing water hammer, protecting pipes and fixtures, reducing noise, and improving water flow.

What You Need to Learn

1. What is the best size expansion tank for my plumbing system?

The size of the expansion tank you need will depend on the size of your plumbing system and the amount of water flow that occurs. A plumber can help you to determine the correct size tank for your system.

2. How often should I inspect my expansion tank?

You should inspect your expansion tank annually to make sure that it is functioning properly. If you notice any signs of damage or wear, you should replace the tank.

3. Can I install an expansion tank myself?

Yes, you can install an expansion tank yourself. However, it is important to make sure that the tank is installed properly. If you are not comfortable installing the tank yourself, you can hire a plumber to do it for you.