The corners have little grout after removing the caulk they have up to 1 8 gaps up to the top of the shower.
How to dry out wall behind tiles.
Scrape away any loose or peeling paint or wallpaper.
Remove any remaining dust oil or grease with tsp tri sodium phosphate or an ammonia based cleanser.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
All tiles need to be removed from shower area walls inspected for moisture penetration mould.
I am running a fan for a few more days to try to dry out behind the tile.
Thoroughly vacuum the area and give the wall a once over with a damp sponge or cleaning cloth.
The tile is 12 floor tile w inlay tiles.
Not sure how long it will take to dry the wall out any.
Hold the float at a 45 degree angle to the wall to push the grout into the joints between the tiles.
An extractor or a dehumidifier or good airflow which includes the window plus another point of entry would do.
Tap a rubber mallet on the head of a small chisel to remove the grout in the tile joints.
You want the tile adhesive to have something to grab onto.
Seal the walls with a skim coat and let it dry thoroughly.
However remember you must not have portable electrical appliances in a bathroom.
Sand with a medium grit sandpaper to create a uniform surface that s not too smooth.
You then need to remove the damp air.
Its quite an old flat c1900.
Let the wall dry thoroughly.
Step 2 place a wide putty knife under the ceramic tile parallel to the floor.
A fan inside the cube will dry the water out of the wall.
Let the grout dry.
The source of the damp is definately the tiles themselves we havent been here too long and when we looked some of them they are mosiac tiles were virtually falling out where the bath joins the wall and just n the spot where the shower falls onto them.
Use the rubber mallet to tap the head of the putty knife to pop the ceramic tile from its place.