The tiles aren't one hundred percent even, either. One of them, right next to the drain was sorta off-kilter, and it cracked.
"Simple," you say. "Take it out and replace it!" After all, that's what bobvila.com and diynetwork.com told me to do.
So we pry this tile out - not easy, in fact we chipped one of the adjacent tiles - and we've got a confusing sight before us.
There's a thick layer of wet, sandy, crumbling gray stuff under the tile - obviously water had gotten in. But why is it so thick? Tiles are, at most, 3/8" thick, and the length between the black plastic pan and the top of the tile has got to be twice that. Is there supposed to be 1/2" of adhesive under the tile?
And there are more questions. Why does the "pan" have holes in it? Why isn't it sloping towards the drain?
I'm afraid if we just slap a crazy-thick layer of whatever adhesive down, pop a tile on top of it, grout and seal the whole thing, that we're putting a band-aid over a larger problem.