How to Flush Your Water Heater’s Tank

August 11, 2022
Water Heaters in Jackson, MO

Mineral deposits build up in your water heater’s tank over time. To get rid of these deposits, you need to flush the tank once a year or more, depending on the mineral content of your water. By doing this, your water heater will last longer and operate more efficiently.

Turn Off the Water Heater

Switch off the cold-water supply valve, which is on top of your water heater. If you have a gas water heater, turn the thermostat to pilot. If yours is an electric model, flip its circuit breaker in the electrical panel.

Connect a Hose to the Drain Valve

Let the water heater cool down for a few hours. Connect a garden hose to the drain valve on your water heater and place the other end of the hose outside.

Turn on a Hot Water Tap

Open the hot water tap in your kitchen sink, as this will help the tank drain faster. You need to then open the drain valve at the bottom of the water heater. Let the water flow until the tank is empty.

Flush the Tank

Once the tank is empty, turn on the cold water supply. This will flush out any sediment still at the bottom of the tank. Repeatedly turn the cold water supply on and off until the water coming out of the hose is clear.

Close the Drain Valve and Refill the Tank

Close the drain valve, and remove the garden hose. Turn on the cold water supply so the tank is refilled. You should then turn the gas back on or flip the breaker. Check that the drain valve isn’t leaking and that the job of flushing your water heater tank is complete.

Obermanns in Jackson, MO, can help you with your gas or electric water heater. We also do plumbing and drain repairs. We can even repair, replace, and tune-up air conditioners and heaters. Get in touch with us today to schedule an appointment.

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