This will drive the tiles deeper into the mortar.
Tiling wall fill low splots with thinset.
Because it is cementitious thinset is dimensionally stable it will not shrink or contract.
Deep screed thinset over them to create a flat surface.
Mix it very thin and runny so when you pour it it will run to the low spots.
You just mix the powder with water and pour to create a flat smooth surface.
If you find low spots more than 1 4 in.
Using thinset to fill in low spots.
Thinset tile mortar provides a very strong bond and is resistant to moisture and mold growth.
Need to make some adjustments in the shower pan pitch where i have flat spots and or low spots or the pitch is slightly off.
You may want to tape several strings down criss.
Tape a string down from one high point in the floor to another high point in the floor.
Mark your low spots with a level and use the self levelling mix.
This should be be done if you want to put a mosaic insert of thin glass tile 1 8 inch between thicker architectural tiles like 3 8 inch stone and ceramic and still have a flush surface.
If more pressure is placed on low.
Lay a flat board over the tiles paying attention to the uneven spots and beat the board with a rubber mallet.
Is it ok to use thinset to adjust the slope and fill low spots even if it means skimming the entire surface to make adjustments.
Pour thinset powder into a bucket and add water.
Fill in the unbowed areas of the wall to bring them in line with the bow by floating extra thinset made extra sticky with the addition of an additive such as latex.
This technique works best for.
Or is it better to put another thin layer of the mud mix that i used for the shower base.
Thinset is also heatproof so it will not lose its grip in hot environments.
For really bad floors self leveling compound also called self leveling underlayment is a lifesaver.