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Step 7 · Restore Power and Final Cleanup

Once you have double-checked that there are absolutely no leaks and the water heater tank is full (indicated by a steady flow from the hot water taps), you can safely restore power. Go back to the electrical panel and flip the water heater's circuit breaker back to the 'ON' position. The water heater will now begin to heat the water in the tank. Tidy up your tools, wipe up any spilled water, and dispose of the old expansion tank according to your local recycling or waste disposal regulations, as it is considered scrap metal.

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Step 7 · Restore Power and Final Cleanup

Once you have double-checked that there are absolutely no leaks and the water heater tank is full (indicated by a steady flow from the hot water taps), you can safely restore power. Go back to the electrical panel and flip the water heater's circuit breaker back to the 'ON' position. The water heater will now begin to heat the water in the tank. Tidy up your tools, wipe up any spilled water, and dispose of the old expansion tank according to your local recycling or waste disposal regulations, as it is considered scrap metal.

Tools and Materials

← Project

How to Replace a Water Heater Expansion Tank

Step 7 of 7·10 min left

Preparation and Safety Precautions
15 mins3 itemsBeginner
Drain the System Pressure and Water Level
20 mins2 itemsIntermediate
Prepare the New Expansion Tank
10 mins4 itemsIntermediate
Remove the Old Expansion Tank
15 mins2 itemsAdvanced
Install the New Expansion Tank
15 mins4 itemsIntermediate
Restore Water and Check for Leaks
15 mins2 itemsBeginner
7
Restore Power and Final Cleanup
10 mins1 itemsBeginner
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