![Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips](https://i.redd.it/thgio1buehg91.jpg)
Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips
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Dealing with Limescale Staining on Slate Shower Tiles in Middlesex - Stone Cleaning and Polishing tips for Slate floors
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Removing Limescale staining from a Black Limestone Shower Cubicle in Everdon - Northamptonshire Tile Doctor
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Removing Limescale from Limestone Shower Tiles in Berkshire - Stone Cleaning and Polishing Tips for Limestone Floors
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Removing Limescale staining from a Black Limestone Shower Cubicle in Everdon - Northamptonshire Tile Doctor
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Removing Limescale from Polished Black Marble floor tiles in a Baldock Bathroom - Tile Cleaners | Tile Cleaning
![Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips](https://i.redd.it/a3im43buehg91.jpg)
Black tiles covered in limescale (I think?). Citric acid didn't help. Any ideas how to get them clean? : r/CleaningTips
![Removing Limescale staining from a Black Limestone Shower Cubicle in Everdon - Northamptonshire Tile Doctor Removing Limescale staining from a Black Limestone Shower Cubicle in Everdon - Northamptonshire Tile Doctor](https://northamptonshire.tiledoctor.biz/wp-content/uploads/sites/5/2017/03/Black-Limestone-Shower-Cubicle-Before-Cleaning-Everdon-Vilage-0150.jpg)