Why Maintenance Matters
Southern California has notoriously hard water. Over time, mineral deposits and sediment build up inside the tank, reducing heating efficiency and accelerating corrosion. A neglected water heater works harder, uses more energy, and is far more likely to fail without warning. A well-maintained unit can last 10 to 15 years. A neglected one may fail in half that time.
5 Steps You Can Do Yourself
- Turn off the power. Gas units: set the dial to "pilot." Electric units: flip the breaker. Safety first, always.
- Test the pressure relief valve. Lift the lever briefly. Water should flow freely and stop when released. If it drips or does nothing, the valve needs replacement.
- Inspect the anode rod. This sacrificial rod protects the tank from corrosion. If it is heavily corroded or coated in calcium, it is time for a new one. Most rods last 3 to 5 years.
- Flush the tank. Connect a garden hose to the drain valve and flush until the water runs clear. This removes sediment buildup. Do this at least once a year.
- Check the thermostat. Set it to 120 degrees Fahrenheit. This is hot enough for daily use, prevents scalding, and saves energy.
Tank vs. Tankless in Southern California
Tankless water heaters are increasingly popular in LA homes. They heat water on demand, take up less space, and can cut energy costs by 20 to 30 percent compared to traditional tank models. However, the upfront cost is higher and installation is more complex.

