How to Flush your Water Heater Easily

flush water heater

In this article, we are going to show you how to flush your water heater easily. The way a water heater works, cold water enters through a dip tube that runs down to the bottom of the tank and hot water exist from the top of the tank. It results in sediment, rust, and contaminants from the water sinking to the bottom of the tank.

Allowing the sediments deposits to build up in the tank may result in loss of heating power. Also possible health issues for those who use that water. To get the safest and most dependable use from your water heater, cleaning it regularly, is the best way to go. Here’s how to flush your water heater easily.

In the winter season, it’s really very challenging in taking those morning showers with the cold water. Before buying a water heater, there are a few things to be considered.

Check out: Best water heater you should consider buying

Drain the Water Heater

  • Connect a water hose to the bib near the bottom of the heater and extend the hose to a bucket or outside location.
  • Turn off the power to the tank (or) set the gas control valve to the “Vacation” settings.
  • Open the drain valve and turn on the hot water faucet to allow air into the tank.
  • Allow the tank to empty fully before proceeding. Larger hot water heater takes a bit longer to drain but it shouldn’t take more than a few minutes.

Note: If your water heater has a plastic drain valve, it is a good time to replace it with a more durable brass valve. With a large adjustable wrench, remove the drain valve and replace with the brass valve.

  • To flush your hot water tank, simply turn on the cold water spigot leading into your hot water tank. Make it run for a few minutes until the water exiting your hose runs clear.
  • The water may be running clear, but still, it can have some sediment. Continue the flushing until you have a very clean surface inside your heater.
  • Finally, Turn off the cold water spigot leading into your hot water tank.

Finishing Up

Once you have clear water, it’s time to put things back to the way they were.

  • Turn off the drainage spigot and disconnect the hose.
  • Close the pressure valve if you have opened it.
  • Turn off the water in your sink or tub, that you have turned on at the beginning.
  • Turn on the water spigot leading to your hot water heater.
  • When the tank is full, open the perssure relief valve to let off the excess air.
  • Turn on the hot water spigot of the tube to get the air ou of the system. Cold water should be coming out of the faucet at this time. Turn it off. 
  • Turn on the gas to your heater, if you have shut off it.
  • Turn on the thermostat on your hot water heater, if you have turned off it.
  • Flip the breaker switch if you have an electric hot water heater, that gives the power to your water heater.
  • It may take 10-20 minutes for the water to heat up.
  • Turn on the faucet, to ensure hot water is coming out.

You have finished flushing your hot water heater. Make a mark on your calendar to do it again in this year.

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