Hi guys,
A few years ago I laid stone tiles onto my kitchen floor, I then proceeded to make a complete mess of the grouting, (first time!), now, the grout has sank between the tiles and I intend re-grouting.
To make matters worse, in addition to the grout sinking I also left "smears" of grout on the tiles, I would now like to rectify this, I have chemical corrosive, (Teragon) and a "wet" vacuam cleaner, however I am starting to wonder if sandpaper would be a good option or if not what options are available to me? eg abrasive "wheel" of small angle-grinder? Or is there an equivalent stone sander similar to that used on wooden floors?
Thank you.