Regrouting Shower
The grout in between the tiles needs to be removed at least half the thickness of a tile using.
Regrouting shower. Remove the excess. Ensure that the whole shower is dry before applying new grout since applying it on a wet surface. Clean joints with a grout saw.
Most manufacturers sell blades designed for this. Run the tool guides between the tiles and grind through the old grout. Simplify the job by purchasing a grout removal kit that attaches to a dremel tool.
You should only attempt to regrout a shower with narrow grout lines that have unsanded grout in them. Let the grout sit for another three hours and then take some wet paper towels and wipe off the powdery film that usually remains. Water enters through cracked brittle grout and builds moisture behind.
Grind away the old grout. When your shower grout washes down the drain with the bath water and you stub your toe in the crevices it s time to regrout. Fit an oscillating tool with a blade designed for grout removal.
Clean up the grout lines. You can read here about the differences between sanded vs unsanded grout. Let the grout harden for 30 minutes and then use your grout saw to give it an even appearance.
How to regrout a shower floor 1. Attach the removal unit and set the bit depth to 1 4 in. Regrouting a tile shower is a difficult task but can be done by many industrious diy homeowners.