Remove the tile and prepare the wall according to the corresponding instructions above or tile over the existing tile.
Mudding a wall before tiling.
Sand the area with medium grit sandpaper until even and vacuum up the dust.
Drywall is smooth flat and easy to install.
Drywall sheets are a big improvement over plaster and lath type walls in older homes.
Wash the wall with tsp tri sodium phosphate or an ammonia based cleaner to remove any grease or oil.
If the drywall dust is not removed before applying the primer the primer will not stick to the wall.
Sealing your shower walls is essential for tiling the surface to prevent moisture from effecting the integrity of your tile installation.
Wipe with a damp cloth to remove any remaining dust and allow to dry.
If it was just a small spot ok.
Poor adhesion causes texture to peel and bubble from the wall and create an unprofessional looking texture and plaster finish.
You may also paint this area if only tiling a portion of the wall to minimize cut in work around the tile.
Count how many tiles you ll need.
As for mudding to make it even i would not even attempt it.
Vacuum clean and wipe the walls.
Use even pressure and do not force the primer onto the.
To do so make sure all of the tiles are intact and secure.
Do a precise measurement of the surface.
The technique of layering means for you to apply one layer of filler and let it dry before you apply the next coat.
Prime the surface prior to the tiling.
Start with planning your wall tile installation.
Even walls covered in drywall.
How to use mud on uneven drywall.
Prime to seal it and let dry.
Cement backer board a type of wall.
I would redo the wall yes more work and a delay but it is not a patch it will be right when you finish it and all those other issues you bring up will also be addressed in one instance.
Repair any loose or cracked tiles.
The definition of level is expertly argued on points that range from the shape of earth to the surface s relation to the plane of the seas.
Plywood or drywall is insufficient as a subfloor because it is a permeable material that will rot away when exposed to water.