Flooring Tile - cleaning sand grout from slate

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rundog
05-23-03, 10:23 AM
I recently re-grouted a slate walkway and the sand grout left a color residue along the edge of the slate. What do I use to restore the slate to its original color?

floorman
05-24-03, 07:36 AM
was the slate sealed prior to grouting?if not you may be outta luck but try sulfamic acd crystals and water:cool: