Most water heaters require flushing once a year, though the frequency can depend on the hardness of your water and the manufacturer's recommendation. Flushing removes sediment, scale, and other debris that may accumulate over time, helping to prevent costly repairs or replacements.
When Should You Flush Your Water Heater?
In general, you should flush your water heater at least once a year. However, if you live in an area with hard water, you may need to do it more often, perhaps every six months. Hard water contains higher levels of minerals like calcium and magnesium, which can quickly build up inside the tank and cause more significant problems.
If you notice any of the following signs, it may be time to flush your water heater:
- Strange noises coming from the unit, such as popping or rumbling
- Decreased hot water supply or slower heating time
- Water that is cloudy, discolored, or has an unusual taste
- An increase in energy bills without any other apparent cause
In these cases, flushing the water heater can often resolve the issue by removing the sediment buildup that is likely causing the problem.
What Happens If I Don’t Flush My Water Heater?
Failing to flush your water heater can cause several issues. Over time, sediment buildup can cause the heating elements to burn out, resulting in reduced heating efficiency or even complete failure. The accumulation of minerals can also cause the tank to corrode from the inside, which can lead to leaks or other serious damage.
If sediment buildup continues unchecked, it can significantly decrease your unit's lifespan, causing you to replace it much sooner than expected. The longer you wait to flush the unit, the more difficult it will be to remove the sediment, and the more damage it may cause to the internal components.
How to Flush Your Water Heater
Flushing a water heater is a relatively simple process, but it does require caution. First, turn off the power supply to the heater. For electric water heaters, disconnect the unit from the power source. For gas heaters, turn off the gas supply. This step is essential to prevent accidents during the flushing process.
Next, turn off the cold water supply to the tank. Attach a hose to the drain valve at the bottom of the unit and place the other end of the hose in a suitable drainage location. Open the drain valve and allow the water to flow out of the tank. It may take several minutes for the tank to drain completely, depending on its size and how much sediment has accumulated inside.
Once the water has drained, you can flush the tank by briefly turning on the cold water supply. This helps stir up any remaining sediment and flush it out of the tank. After the water runs clear, close the drain valve, remove the hose, and turn the cold water supply back on. Finally, restore power or gas to the heater, let the unit refill, and begin heating the water again.
Contact Us for Water Heater Services
Regularly flushing your water heater is a simple yet effective way to keep your unit running efficiently and prevent costly repairs. If you’re experiencing a problem with your water heater, however, a repair or replacement might be the solution you need.
Meyers Companies, Inc. has many years of experience helping home owners like you fix and install new water heaters. We’re always here when you need us, especially if you want professional help flushing your water heater and inspecting it for potential problems.
Contact us today to learn more about our plumbing services and schedule your next appointment.