How to Remove Stubborn Blue and Green Stains From a Bathroom Sink: Step-by-Step Guide

Have you ever tried vinegar, baking soda, and several cleaning products, only to find that those stubborn blue-green stains around your bathroom tap refuse to budge? You’re definitely not alone!

Looking at your photos, there appears to be a blue-green deposit around the base of the tap, with streaks running down the white ceramic basin. There are also yellowish rings around the plughole.

The blue-green staining may be copper corrosion or mineral deposits associated with the tap or water supply, although coloured cleaning products or other residues could also be responsible. The yellowish marks around the plughole may have a different cause.

Since you’ve already tried vinegar, baking soda, and The Pink Stuff without success, I would avoid more aggressive scrubbing until you’ve identified the likely cause.

Here’s what I’d try next.

Step 1: Clean Away Any Surface Residue

Before using another product, remove any remaining cleaning residue.

1. Rinse the basin thoroughly with clean water.
2. Use a soft, non-abrasive cloth to wipe the affected areas.
3. Rinse again and dry with a clean towel.
4. Inspect the stains in good lighting.

Avoid mixing cleaning products. In particular, never combine vinegar or other acidic cleaners with bleach, as this can release dangerous chlorine gas.

Step 2: Try a Ceramic-Safe Bathroom Cleaner

Because the basin appears to be ceramic, a bathroom cleaner specifically labelled as suitable for ceramic sinks may help remove ordinary surface deposits.

1. Check the product label to ensure it is suitable for your basin and tap finish.
2. Test it on a small, inconspicuous area.
3. Apply it according to the manufacturer’s instructions.
4. Allow it to work for the recommended time.
5. Gently wipe with a soft cloth.
6. Rinse thoroughly and dry the surface.

Avoid abrasive scouring pads, wire wool, and gritty powders. These may scratch the tap’s finish or damage delicate surfaces.

If the stains remain unchanged, don’t keep repeating the same treatment.

Step 3: Investigate the Blue-Green Staining Around the Tap

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