If the space is less than 1 8 inch you should use unsanded grout.
Bathroom tiles grouting.
For the perfect bathroom tile cleaner apply the thick paste to the dirty tiles using a damp cloth or sponge.
Use a hard edged rubber grout float and hold it at a 45 degree angle.
Most manufacturers sell blades designed for this.
Wipe the excess grout and film off the face of the tile with a damp sponge rinsing it often.
Spread the material in sweeping arcs pressing it into the joints to fill them completely.
Lay out your tiles first to determine how much space needs to be sealed between each row.
Required tools for this grout removal project.
Let the paste sit for a minimum of 30 minutes.
Spaces larger than 1 8 inch need sanded grout.
With a clean cloth rinse the clean bathroom tiles with warm water.
For more tile grout tips and tricks pleas.
Take an old toothbrush or grout brush and scrub removing the soap scum with it.
Let the grout set up for approximately 20 minutes until a film develops over the tile then clean the area as shown in photos 3 and 4.
The best type of grout for your ceramic bathroom tiles depends largely on the size and design of the tiles in question.
Learn the ins and outs of grouting a tile floor.
Work in a small area at a time roughly a 3 x 3 foot section.
Clean up the grout lines.
With these insights you will be an expert tile grouter in no time.
After the grout has dried for a week protect it with a grout sealer.
Fit an oscillating tool with a blade designed for grout removal.