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Type: Posts; User: Doubtful John
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24th April 2018, 11:56 AM
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I recommend a tablespoon of oxalic acid dissolved in water will bleach out stains
oxalic is brilliant. If the stains are iron based (rust) then a similar brew of citric acid will remove those. Oxalic is used to clean newly laid brickwork so the hardware should have it. Citric is...