How to Remove Tannin Stains From Stonework

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Remove Tannin Stain in Stonework

It’s not hard to remove tannin stains from stonework. In order to get rid of any stains that might have occurred, it is recommended that you use bleach to remove already stained stonework, first trying it on a test patch. Pour undiluted onto stain, scrub with hard bristle brush and let it sit on the stain for around 10 minutes. After 10 minutes, simply wash away with a hose.

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