Sprinkle in 2 to 3 tablespoons of citric acid. Submerge your item. Let it sit overnight. Remove the item in the morning, and scrub off lingering rust with a brush. Rinse and pat dry. Pros ...

When oxalic acid comes into contact with rust ... When you're thinking about how to remove rust from your tub or shower, you probably wouldn't think of trying club soda. However, believe it ...