> ;2993965']I have some Polyblend sanded grout.
I would put some of your grout through a very fine sifting screen to
remove the sand from it, and then use it to fill the hole.
After filling the hole and allowing the grout a week or so to dry, keep
applying coats of a film forming acrylic grout sealer until you get a
smooth surface over the grout.
Home Depot sells a faily good acrylic grout sealer made by Tile Lab
called "Gloss Sealer & Finish".
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