To replace a锈蚀 water valve core, first shut off the water supply and drain the system. Disconnect the supply pipes using a wrench or spanner. Remove the old valve core by turning it counterclockwise. Clean the seat with a wire brush to remove rust. Insert a new core, ensuring it seats properly. Reconnect pipes, restore water flow, and test for leaks. Use a replacement kit if available for compatibility.

Rust weakens valve components, leading to leaks, water waste, and property damage. The EPA estimates that 10% of U.S. homes have undetected leaks, wasting 100 gallons of water daily per household. Rust accelerates corrosion, increasing maintenance costs by 20–30% annually. A faulty valve core can cause foundation cracks, mold growth, and mold remediation expenses averaging $5,000–$30,000. The CDC notes that water damage accounts for 23% of U.S. property insurance claims, costing $15 billion yearly. Replacing a rusty valve core prevents long-term financial risks and ensures safe water distribution. Data from the American Water Works Association shows that proactive valve maintenance reduces emergency repairs by 40%. Neglecting锈蚀 cores may lead to emergency water shut-offs, disrupting 2–3 million households annually, as reported by the U.S. Infrastructure Security and Efficiency Act of 2007.