I have had multiple issues with my remodel. The latest issue has to do with the penny round installation in my powder room and master bath shower. I wanted white penny rounds and white grout. There are several areas where there are distinctive gray patches showing through the grout.

After doing my research I concluded that the tile installer probably used dark gray thinset instead of white (it is cheaper). In the powder room it is only in patches. The master shower just looks dirty and gray tinged. My contractor swears up and down that the tile installer used white thinset to set the tile. He says it is dirt and color variations in the tile (I will attach another picture of the tile before it was installed to show lack of color variation). He is VERY adamant and says he will pull all the tile up if I want him to, as long as I pay the cost to replace it if the thinset is discovered to be white. Today, I pulled up a few tiles in the powder room and found half of the thinset to be dark gray and half to be white. I do not know about the master shower as there are no areas for me to easily pull up (although I did attach a picture of before the grout was set and it looks dark gray to me).

My family is telling me to leave it because we have SOOOO many other outstanding issues with our project, but I am angry. We paid several thousands of dollars for this tile work and it looks bad to me and our contractor is lying to us again...would you accept this work or would you live with it? I wanted white on white.