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The alternatives to using muriatic acid to clean grout smears from natural stone is a mixture of water and vinegar. First wipe away heavy grout with a damp sponge, then apply the vinegar-water mixture to the affected area. Allow it to sit for a few minutes before using a scrubbing brush to remove the stains. Wash away the residue with a damp sponge.

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9y ago
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Q: What are the alternatives to using muriatic acid to clean grout smears from natural stone?
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