One of the most commonly overlooked home maintenance tasks is flushing your water heater. One of the reasons so many people don't flush their water heater is they don't know how to flush a water heater, but flushing your water heater regularly is essential to its functionality and longevity.

If you're wondering how to flush a water heater, you're not alone. Luckily, you're in the right place. Today, we're giving you a step-by-step guide on how to flush your hot water heater based on the type of water heater you have. We're also sharing the importance of flushing your water heater regularly. We hope by the end, you're inspired to tackle this task this weekend. Your wallet will thank you down the road.

What Is a Water Heater?

water heater at the back of the house

Image source: flickr

Before we get into how to flush a water heater, let's first talk about what a water heater is. If you've moved into your first home, you may not even know what one looks like.


A water heater is an apparatus that heats, and in the case of domestic use, stores hot water. There are several potential power sources for water heaters.

However, most domestic water heaters are heated with power from electricity or natural gas. On the other hand, many commercial water heaters work through solar power or with propane. 

Is There a Need to Flush a Water Heater?

water heater installation at the back of the house

Image source: flickr

There is absolutely a need to know how to flush a water heater. If you own your own home, flushing your water heat regularly will extend its useful life, saving you money on replacing it in the future. It will also reduce future maintenance costs.

Prevent a Premature Breakdown

Prevent Hot Water Shortage

Eliminate Noise

How Often Should I Flush My Water Heater?

Step-by-Step Information on How to Flush a Water Heater

Luckily, it's easy to learn how to flush a water heater and even simpler to do. Even if you're not very handy, it should only take you about 20 minutes. Here's how to do it in nine easy steps:

1. Turn Off the Knob to Your Hot Water Heater's Thermostat

2. Turn Off the Gas

3. Turn Off the Cold Water Supply

4. Turn on the Hot Water in Your House

5. Open the Pressure Relief Valve

6. Connect a Hose to the Spigot

7. Turn on the Spigot and Drain

8. Flush the Tank

9. Wrap Up

The Bottom Line

water heater at the back of the house

Image source: flickr

Every home owner should know how to flush a water heater. Even if you rent your home, you should still know how to complete this crucial household task. 

Your water heater should be flushed every one to three years. If you've turned on your bathroom faucet and the water comes out brown, your water heater is past due for a cleaning.


When it comes to how to flush a water heater, there are only nine simple steps you have to remember. First, turn off the knob to your hot water heater. Then, turn off the gas or electricity that powers your water heater. Third, turn off the cold water supply to your heater and turn on a hot water faucet in your home. Leave this running until you're done.

While not required, we recommend opening the pressure relief valve on your tank to ensure it's working. Connect a hose to your spigot and make sure no water will get on your floor. You may need a portable water pump for this step, depending on where your hot water heater is located.

Turn on the spigot and drain and flush the tank until the water runs clear and there is no sediment coming out of the hose. Finally, undo everything you just did and pat yourself on the back for flushing your own hot water heater.


Please enter your comment!
Please enter your name here