Be careful not to add too much water if the grout becomes soupy you will have to add more grout powder to regain the correct consistency.
How to grout ceramic floor tile.
To mix powdered grout.
Use this method for both pre mixed and powdered grout.
Use a hard edged rubber grout float and hold it at a 45 degree angle.
Work in a small area at a time roughly a 3 x 3 foot section.
Then wait 15 30 minutes for the grout to set before wiping off excess grout with water and a grout sponge.
Begin cleaning the tile surface immediately to prevent film or excessive clean up later.
Pour 1 cup of dry grouting compound into the small plastic tub.
Add water and stir with the putty knife until the grout is a smooth consistency neither too crumbly nor too soupy.
Mix the grout powder with water in a plastic bucket using a margin trowel and following the manufacturer s directions.
To grout a tile floor start in the farthest corner of the room scoop some grout on the floor with a trowel and use a grout float to spread the grout over a small joint.
Demonstration of tile grouting technique using correct technique with tips for best practices.
Sprinkle dry grout directly from the package over your work area.
Let the grout sit.
Add water very slowly until it reaches a toothpaste like consistency.
Spread the material in sweeping arcs pressing it into the joints to fill them completely.