Introduction

A water heater needs regular cleaning to work well. Sediment builds up over time. This lowers efficiency and shortens the unit’s life. Basic maintenance helps save energy and prevent damage. It also ensures clean, hot water.

Step 1: Turn Off the Power Supply

Electric water heater:

• Locate the circuit breaker.
• Switch off the breaker connected to the water heater.

Gas water heater:

• Turn the gas control knob to the “pilot” or “off” position.

This prevents accidents while working on the unit.

Step 2: Shut Off the Water Supply

Find the cold water inlet valve above the water heater. Turn it clockwise to stop the water flow.

Step 3: Let the Water Cool

Wait at least two hours after turning off the power. This allows the water to cool, reducing the risk of burns.

Step 4: Connect a Hose to the Drain Valve

• Attach a garden hose to the drain valve near the bottom of the tank.
• Place the other end in a drain or large bucket.

Ensure the hose is secure to prevent spills.

Step 5: Open the Drain Valve

• Open the valve slowly.
• Let the tank empty fully.

If water flows slowly, sediment may be blocking the valve. Use short bursts from the cold water valve to help flush debris.

Step 6: Rinse the Tank

Once drained:

• Turn the cold water valve back on briefly.
• Let fresh water flush out remaining sediment.
• Repeat until the water runs clear.

Clear water means most sediment has been removed.

Step 7: Close the Drain Valve and Remove Hose

• Turn off the cold water valve.
• Close the drain valve tightly.
• Remove the garden hose.

Check for leaks around the valve.

Step 8: Refill the Tank

• Open the cold water inlet valve.
• Open a hot water tap in your home to let air escape.
• Once water flows from the tap without sputtering, the tank is full.

Step 9: Turn Power or Gas Back On

Electric unit:

• Switch the circuit breaker back on.

Gas unit:

• Turn the control knob to “on.”
• Follow the lighting instructions if needed.

Step 10: Inspect the Anode Rod

The anode rod prevents rust inside the tank.

• Turn off power and water.
• Unscrew the rod from the top of the tank.
• Check for wear. If the rod is under half an inch thick or coated in calcium, replace it.

Check the rod once a year to protect the tank.

Step 11: Check for Water Leaks

• Inspect the base of the heater and pipe connections.
• Look for moisture or dripping.
• Tighten fittings if needed.

Leak checks prevent water damage.

Step 12: Schedule Annual Plumbing Services

Have a licensed plumber inspect your unit once a year. This helps detect problems early. Services may include:

• Checking thermostat function
• Inspecting pressure relief valve
• Replacing worn parts

Conclusion

Cleaning your water heater keeps it efficient and safe. It removes sediment, prevents rust, and improves heating. Do this once a year to extend the life of the unit. For better results, schedule professional plumbing services. Preventative steps now help avoid repairs later.