Water Heater

How to Drain a Water Heater

Read Time:4 Minute, 18 Second

It may sound funny or excessively mundane to the inexperienced to hear talk about how to drain a water heater, but to many this is a very real task that has to be carried out periodically. Draining your water heater on a regular basis is important for two reasons:

1) To remove the built up sediment that can clog your tank and reduce its efficiency

2) To help prevent rusting of the inside of your tank

The frequency with which you need to drain your tank will depend on the quality of your water, but as a general rule it is a good idea to do it at least once a year. If you live in an area with particularly hard water, you may need to do it more often.

Here are the steps you need to follow to properly drain your water heater:

Shut off the water supply to the heater by closing the valve located on top of the tank

Turn off the power to the heater and this will depend on the water heater type installed. If it is a gas heater, turn off the gas supply at the valve located on the side of the tank. If it is an electric heater, flip the switch located on the side of the tank. This is an important step because if you do not turn off the power or gas, the water in the tank can become superheated and cause serious burns.

Connect a garden hose to the drain valve at the bottom of the tank and position it so that the water will flow freely

Attach a garden hose to the drain valve at the bottom of the tank and open the valve. If your tank does not have a drain valve, you will need to open the pressure relief valve to allow water to start flowing out of the tank. In this process, you may want to have a bowl or bucket handy to catch any water that comes out of the tank.

Open the drain valve and allow all of the water to flow out until it’s completely empty

Open a hot water faucet in your home to help release any remaining pressure in the tank and to help water flow out more quickly. This will help to avoid any messes or spills. Allow all of the water to drain from the tank. This may take some time, so be patient. One challenge you may face is that the water coming out of the tank will be quite hot, so use caution to avoid getting burned.

Close the drain valve and disconnect the garden hose

Once all of the water has been drained from the tank, close the drain valve and remove the garden hose. If you opened the pressure relief valve, be sure to close it as well. It is possible to notice problems with the anode rod at this point. The anode rod is a metal rod that is inserted into the tank to help prevent rust and corrosion. If the anode rod is significantly corroded, it will need to be replaced.

Turn on the water supply and check for any leaks around the drain valve

Turn on the power or gas supply to the heater and turn on a hot water faucet in the house to check if the water is being heated. If there is no hot water, there may be a problem with the heating element or thermostat. These are typically simple repairs that can be made by the homeowner.

If you find any leaks around the tank or connections, turn off the water and power supply and tighten the connections. Check the Owner’s Manual for your specific model for the location of the connections.

If there is no hot water and you have checked the heating element and thermostat, there may be a problem with the gas supply or electric power to the heater. Check the Owner’s Manual for troubleshooting tips.

When you have finished your repair, be sure to turn off the power and gas supply, then turn on the water supply to check for leaks.

Benefits of Regular Water Heater Flushing

Flushing your water heater on a regular basis can extend its lifespan and prevent costly repairs. Some of the benefits of flushing your water heater include:

  • Reducing the build-up of sediment in the tank, which can lead to corrosion and premature failure.
  • Improving the efficiency of the heater by removing sediment that can insulate the heating elements and prevent them from doing their job properly.
  • Helping to prevent “hot spots” from forming on the bottom of the tank, which can cause scalding hot water to come out of the tap unexpectedly.
  • Allowing you to check for leaks and other problems so that they can be fixed before they cause major damage.

If you have never flushed your water heater before, or if it has been more than a year since the last time you did it, then now is a good time to get it done. Flushing your water heater is a simple process and we hope you can follow the guide we have provided.

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