Most people don't give much thought to their water heater - they just turn on the faucet and expect hot water to come out. Keep your water heater in peak operating condition by performing some simple maintenance. All you need are a few common household items and about an hour of free time. Lowe's is happy to provide this information as a service to you.
Tools & Materials
- Bucket
- Garden hose
- Gloves
- Goggles
Check the Pressure Relief Valve Every Six Months
SAFETY NOTE: Always wear gloves, goggles and other protective clothing while performing maintenance on your water heater.
Both gas and electric water heaters have a safety device called a pressure relief valve. In the event the tank over-pressurizes, the relief valve opens and releases the pressure. If the valve does not operate correctly, the tank can over pressurize and explode. To check the pressure valve:
- Turn off the electricity to the water heater or turn the gas switch to pilot.
- Shut off the cold water inlet to the water heater.
- Position the bucket to catch water from the pressure relief valve.
- Pull the trip lever on the valve. You should hear a slight rush of air or see some water and vapor exit through the pressure relief valve. If you don't, drain the tank and replace the valve.
Flush the Tank Every Six Months
Sediment build up in the tank can reduce your water heater's energy efficiency and also clog your water lines. Avoid these problems and increase the life of your unit by flushing the tank each time you check the pressure relief valve. To flush the tank:
- Turn off the electricity to the water heater or turn the gas switch to pilot.
- Shut off the cold water inlet to the water heater. Water Conservation Tips.
- Connect a garden hose to the tank's drain valve.
- Locate the draining end of the hose in an area that won't be adversely affected by the scalding hot water.
- With the pressure relief valve open, open the drain valve and allow the tank to drain completely. Completely draining the tank ensures that you have removed all of the sediment possible.
- Close the tank drain valve, disconnect the hose from the valve and close the pressure relief valve.
- Open all the hot water spigots in the house and turn on the cold water inlet to the tank.
- Close each hot water spigot as water begins to flow from it. After all the spigots are closed, turn on the electricity to the water heater or turn the gas switch to "run."
Following these simple maintenance procedures every six months will keep your water heater operating safely and efficiently for years.
Maintaining Your Water Heater
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