Where the tiles are showing this issue is not where the shower is.
Tiles popping off wall.
Put on protective eyewear and gloves.
Grouting has been done too early.
The tile supplier has now accepted that the batch was faulty containing lyme deposits that over time cause pinhead sized spots of glaze to pop off.
Continue removing tiles.
The chalk dust will stop the tiles from adhering to the wall.
Only apply as much thinset on the wall as you can cover with tile in five minutes.
The adhesive needs to be applied evenly and on every tile.
Only mix enough thinset as you can use in one hour or less.
Quickest way to remove wall tile 1.
Tile can swell with high moisture absorption.
Due to expansion the pressure will cause the tile to pop up.
If you have used poor quality adhesive.
Adhesive has not been applied properly.
Do not add water to the thinset if it starts to get hard in the bucket before you spread it.
If the area of the floor is directly exposed to sunlight there are the chances of popping up of tiles because the.
Use cold water to mix the thinset to retard the setting time.
Make sure that the tile adhesive that you use is water resistant.
Remove all the tiles in that vertical row by tapping and prying with the putty knife.
If the gaps are not consistent during the expansion phase the tiles will not have enough space to release stress which results in tiles popping out.
Break the grout around a tile in the middle of the wall with a stiff putty.
Why would you need to seal white glazed tiles for bathroom use or grouting.