Rust stains in the tub or shower

Symptoms

• Orange or brown streaks near the drain or faucet
• Stains return after cleaning with regular soap
• Stains follow the path of dripping water
• Metal fixtures nearby show visible rust

Likely causes

• CommonIron or manganese in the water supply (well water especially)Minerals in the water oxidize on contact with air, leaving reddish-brown stains.
• CommonRusting metal fixture or fitting dripping onto the surfaceA corroding screw, drain ring, or old pipe fitting can stain the area right below it.
• PossibleOld galvanized pipe corrosion reaching the fixtureRust flakes from aging pipes can appear in water and settle as stains.
• Less commonRust-based cleaning products or containers left on the surfaceA rusty can or tool left on the tub edge can transfer stains directly.

What to do

1. Identify the stain source: check if it's coming from a fixture above or from the water itself by looking at fresh water in a white container.
2. Try a rust-specific cleaner (containing oxalic acid) rather than regular bathroom cleaner, following label directions.
3. For stubborn spots, make a paste of baking soda and lemon juice or cream of tartar and let it sit 15–20 minutes before scrubbing.
4. Rinse thoroughly and dry the area to check if the stain is fully gone.
5. If a fixture is the source, dry it completely after each use or consider replacing the corroding part.
6. For recurring whole-house staining from well water, consider a water test to check iron levels.
7. Reapply a protective wax or sealant made for tub surfaces if the finish looks dulled from scrubbing.

Tools and parts

• Soft scrub brush
• Rust remover cleaner
• Gloves

When to call a pro

Call a water treatment specialist if rust stains are widespread throughout the house, since a whole-house iron filter may be needed.

Safety