How do I flush a water heater?

Regularly flushing your water heater is an essential maintenance task that can help prolong its lifespan and maintain efficient operation.

Here's a step-by-step guide on how to flush your water heater:

1. Gather Your Tools and Materials:

• You'll need a garden hose, pliers and a flat/standard screwdriver.

2. Turn Off the Power:

• For electric water heaters, turn off the power at the circuit breaker.
• For gas water heaters, set the gas control knob to the "pilot" position.

3. Turn Off the Cold Water Supply:

• Locate the cold water inlet valve on the water heater and turn it off.

4. Connect the Hose:

• Attach one end of the garden hose to the drain valve at the bottom of the water heater.

5. Position the Hose:

• Place the other end of the hose in a suitable drainage area, like a floor drain or sump pit.

6. Open a Hot Water Faucet:

• Open a hot water faucet in your home to allow air into the system, which helps the water heater drain more effectively.

7. Open the Drain Valve:

• Carefully open the water heater's drain valve with the screwdriver. Hot water, along with sediment and mineral buildup, will start to flow out through the hose.

8. Flush the Tank:

• Allow the water to drain completely, which can take anywhere from 45-60 minutes.

9. Close the Drain Valve:

• Once the water heater is drained, close the drain valve tightly.

10. Refill the Tank:

• Turn on the cold water supply to the water heater and let it fill the tank completely.

11. Bleed Air from Faucets:

• Open a hot water faucet in your home to bleed any remaining air from the system. Once a steady flow of water is achieved, close the faucet.

12. Restore Power or Gas:

• For electric water heaters, turn the power back on at the circuit breaker.
• For gas water heaters, reset the gas control knob to the desired temperature.

Flushing your water heater at least once a year is a simple yet effective way to remove sediment and maintain its efficiency. It can also help prevent potential issues, such as reduced heating capacity and extended appliance lifespan. Remember to exercise caution while working with hot water and to follow safety guidelines.