Don't put 18" tiles on shower walls!!!It's not hard. Just make sure to start in the center of the room.
What are the red things with the white sticks and how do they eliminate grinding?
That's pretty damn cool!The Tuscan Leveling System WS - YouTube
skip to about 3:45 to see them installing them. there are a variety of other brands and similar systems. No way would i ever resort to grinding to eliminate lippage when these systems exist.
I just hope that you placed the thinset, cuz if you poured it then you did it wrong.Grout is in
saved 500 doing it myself