Grout small areas of between 30 to 40 sq. ft. (2,79 to 3,72 m2) at a time, so that cleaning can begin before the grout skins over and dries on the tile surface. The grout color was not what was desired. Use MAPEI's UltraCare Grout RefreshTM Pre-Cleaner and UltraCare Grout Refresh to re-color and seal the joints at the same time.
