Rusty water or metallic taste often signals corrosion inside your heater

https://www.scribd.com/document/1032971848/Everett-WA-Water-Heater-Repair-Services-Same-Day-Availability-186339

Rusty water or metallic taste often signals corrosion inside your heater. We inspect the tank, replace anode rods, or install a new model to prevent damage and improve quality.