Flush the Tank Regularly
Sediment can build up over time and can decrease your tank’s ability to effectively function and it can also clog your water lines. To flush your line, turn off the electricity or gas to the tank and stop the cold water intake, then connect a garden hose and open the drain valve. Close all of the valves and turn on all of the hot water faucets in the house and turn the cold water inlet back on in the tank.
Keep the Temperature Moderate
Keeping your tank set between 115 to 120 degrees will keep your tank from overheating.
Check the Temperature and Pressure Relief Valve
Lift the lever up and let it fall back into place. If you hear a gurgling sound, that means it’s working properly.
If your water heater isn’t performing well or you’re having a regular series of leaks and issues, then you should call your trusted plumber to look over your water heater and help you fully troubleshoot it.