What can I do about 'fixing' what might be a problem. The tileman asked if I wanted a thick grout line or butted. Well, my 17"x17" porcelain bathroom floor tiles are butted so close- not even 1/16"spacers will fit for any grout. None of the thinset from placing them on the floor have come up between the tiles. When I was watching him, it didn't look like there was much material being used between the hardybacker and thinset. The new floor is not completely level either. I stopped the job, am stepping back and trying to figure out what to do, if I can. Any recommendations are greatly appreciated!