
I'm almost ready to re-floor my entire house, but the front entryway has some stubborn thinset that won't come completely up. I have partially been able to grind it down, but not completely. It seems like it could take a couple days of hard work to grind it all down unless I rent a huge walk-behind grinder.To what extent is it ok to place new thinset for tile over old thinset? 1/8" imperfections? 1/4" imperfections? I'm not sure if this will be a huge deal or nothing to worry about. I am using 8"x24" tiles.Thanks!!!! via /r/DIY http://ift.tt/2ld4Xa5