1. Test the relief valve
Place a bucket under the discharge pipe and lift the test lever briefly. Water should flow out and stop when the lever is released. If it drips afterwards, replace the valve.
2. Flush the sediment
Turn off the power or gas, connect a hose to the drain valve and let a few gallons run out until the water clears. Sediment buildup reduces efficiency and causes rumbling noises.
3. Check the anode rod
The anode rod protects the tank from corrosion. If it is worn down to the core wire, replace it to extend the life of the tank.
4. Set the temperature
A setting around 120°F is usually enough for household use and reduces the risk of scalding.
Parts for this job: Water Heater Parts.
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