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how to get these outdoor tiles looking new again? looks like limescale & developed under a pot. Have Tried CLR and Hydrochloric acid. Thanks : r/CleaningTips
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5 Litres Inhibited Hydrochloric Acid Boiler Limescale Descaling Descaler, Rust & Brick Cleaning Acid .. Browse Chemicals .. Car Wash Chemicals ..
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1 litre hydrochloric acid for cleaning limescale residue on tiles (hydrochloric acid) : Amazon.de: DIY & Tools
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