Water Heater Corrosion: How It Happens and Why It's So Hard to Stop
Water heaters are essential for everyday comfort, providing hot water for showering, cooking, and cleaning. But like all plumbing systems, they don't last forever. One of the biggest threats to a water heater's longevity is corrosion, a silent enemy that eats away at metal parts over time. Once corrosion sets in, it's often difficult, if not impossible, to stop. Understanding how water heater corrosion occurs and why it's so difficult to control can help homeowners make smarter decisions about maintenance and replacement. Corrosion occurs when metal reacts with water and oxygen, causing rust and deterioration. Because water heaters are filled with water and constantly exposed to heat, they create the perfect environment for this chemical reaction. Most standard water heaters are made of steel, a durable material that is prone to rust. To protect the tank, manufacturers install a glass liner inside and include an anode rod, a special sacrificial metal piece that attract...