The fear mongers will whisper: “Salt water corrodes metal!” They’re half right. Salt is corrosive, but softened water isn’t salt water. The ion exchange process removes salt by-products. The water that enters your heater is just water—with a trace of sodium.
Think of it this way: ocean water is salty. Softened water is more like a glass of water next to a salt shaker—they’re neighbors, not roommates. Your water heater is safe.
Fun fact: The average American household spends about $150 extra per year on energy due to limescale buildup. A water softener costs less than that annually to maintain. Do the math—your wallet is already softening.
A Simple Weekend Check
You don’t need a lab. Fill a clean glass bottle with tap water, add a few drops of dish soap, and shake. If it forms cloudy, bubbly suds, your water is soft. If it looks like a milky mess with few bubbles, you’ve got hard water.
Another test: check your shower door or kettle. If you see white, crusty deposits, that’s limescale waving hello. Your water heater is probably waving back—in distress.
Pro tip: If you’re still worried, hire a plumber to flush your heater annually. It removes any sediment (from hard or soft water) that settles at the bottom. It’s cheap insurance.
