Pour a quart to half gallon of grout on the tiles.
Grout between tile and tub.
As commonplace as it may be as seemingly logical as it may be it is still wrong in many cases to caulk between the tile and the tub.
Caulking this connection is fine if the wall is some sort of one piece sheet or enclosure but with tile it should not be there.
This gap may widen over time as your home shifts.
Spread the material in sweeping arcs pressing it into the joints to fill them completely.
Grout or caulk between floor tile and tub.
Then grab that stiff brush again and give it another scrub.
This might include any grout along shelves corners and floor tiles or the grout and tile that surrounds the shower drain.
If your grout still looks dull grab a cleaner that s ph neutral such as neu s tub tile cleaner.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.
The sole purpose of grout is to fill the spaces between tiles after the tiles have been glued in place on a floor or on a wall.
Gaps up to 1 4 inch fill gaps up to 1 4 inch in width with caulk.
Grout keeps the tiles from.
A magic eraser can also make quick work of stubborn stains but know that you might go through more than one to get a room full of tiles sparkly.
Next rinse the area thoroughly and use a cloth to wipe the surfaces clean.
If the tub tile connection is caulked the water cannot wick out through the bottom grout joint and moisture builds up and is able to feed the mold that eventually develops.
Allow the paste to set for a few minutes to work its magic and then give the grout lines one more agitating scrub for good measure.
Use a hard edged rubber grout float and hold it at a 45 degree angle.
Grout fills the joints between tiles.
Work in a small area at a time roughly a 3 x 3 foot section.
Similar to the gap that can exist between your wall tile and tub you may have a space between the floor and your bathtub.