My house is only 2 years old and i already have some.
Replacing shower floor grout.
As you do this hold the float at.
Mix up a batch of new grout to match the existing color image 1.
Then use a grout float to press the mortar deeply into the joints between tiles.
Wipe away excess grout with a clean damp cloth.
Mix the new grout according to the package directions and spread it over the surface with a grout float.
Mold is starting to grow in the missing area.
Apply the newly mixed compound to the holes created by the removal of the old cracked grout.
For a standard grout remover the blade tips face one way so only move in one direction.
I know i have to treat and remove the mold prior to replacing grout.
As you go along even out the surface of the new grout with a water dampened finger or a putty knife with a rounded tip.
Scoop the grout from the bucket with a small putty knife.
Start in the middle of your shower and move your way out.
Grout in the shower is missing in my shower where it meets the floor.
Apply the grout with a margin float image 2.
This forces the grout into all the joints.
Let it dry for about 10 minutes then clean the area with a damp sponge image 3.
Apply a smooth layer to an area where grout was removed using your finger or a sponge.
Use the float like a squeegee to get the grout into the deepest places.
Gather some grout onto a putty knife and smooth it into the hole as cleanly as possible until the hole is filled.
Mix and apply the grout.
1 4 cup of hydrogen peroxide 1 2 cup of baking soda 5ml of liquid soap mix the items together into a paste and then apply it to your grout and leave it for 5 10 mins to start working.
Take your grout remover whether it be electric or not and place the blade tip directly on the grout.
Check out how easy it is to repair cracked or worn grout in your shower tub or any other tiled area.