Use a spray bottle and some cold water to wet the areas where you removed the grout.
Shower tile grout repair.
If the width is 1 8 of an inch or smaller use an unsanded grout.
If the space is larger than 1 8 of an inch use a sanded grout.
Lightly dampen the sponge.
Use a grout saw to remove the loose or damaged grout in between the tiles.
Measure the space between the tiles.
The columbus ohio grout doctor cleans repairs and seals grout tile and natural stone.
Match the caulk at most tile specialty shops you can get or order sanded caulk most floor grouts are sanded that will closely match your existing grout color.
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Allow the grout to begin to dry for about 10 minutes or until it resembles stiff putty then wash the surface of the tiles with a grout sponge to remove the excess grout.
This fix is only practical for interior tile floors and when the gaps between the tiles are 1 4 in.
Gently run the grout saw back and forth along the grout seams.
Then take an old toothbrush and scrub the seams.
Grout is available as sanded or unsanded.