OMG, what worked in my now gone old tile was the Mr Clean eraser pads- took a fair amount of elbow grease, but no matter what I used to scrub with, sponge, brush, cleaner, didn't work. That white pad was incredible. I tested a small area first, waited a few days to just be certain, then went to work. It saved me be totally grossed out the last 2 years of the shower. Happy to say it is in the dump somewhere now. Here is a link that might be useful: Magic Eraser

thanks for the confirmation that microbevel is the way to go. Though I confess I don't yet know why this is desireable. But I guess it is an advantage that I am at least so far not getting multiple opinions :-). Thanks again.

I'd prefer that more grout had been left in the joints. They look dished out a bit too much, where too much grout was removed during the cleanup phase. I'd have preferred the grout to be more flush with the face of the tile. Looking closely at the first two photos, the darkened grout lines are all parallel to one another. In the first photo you can see the wet grout lines are all parallel to the edge of the drain. That leads me to believe that the "uphill" edges of the tiles are acting like mini dams and holding water, they are preventing water from easily flowing downhill to the drain. The second closeup photo, you see the same effect. All the damp grout lines are again parallel to one another. Again, to me that reflects a drainage issue. Not necessarily with the amount of floor pitch, but with the grout lines being so dished out that they hold water and slow drainage. Marble is porous and can absorb water. With the grout lines being a bit too raked out, the edges of the marble hexes are exposed. Water held against the tile edge can lead to absorption into the marble. The crack in the grout in that second photo, you also wrote that there are other cracks. That's usually a sign of too much water used in the grout mix, or that sanded grout should have been used instead of unsanded. Unsanded should be used in joints less than 1/8" wide. Cracks can also indicate movement in the floor, but that shouldn't be an issue with a properly set Kerdi Tray. As far as him having used a preformed Kerdi-Tray, if he did, it appears that is was certainly cut down in an awkward manner. The drain is no where near centered in the shower. So if he did some filling here and there with mud or thinset to even out the floor pitch or edge elevations, that could have be part of the problem. But that's supposition on my part. About the only other thing I could question is that often times with small tiles, when the sheets are set into the thinset, thinset can ooze up between the hex tiles and partially fill the grout lines. That thinset needs to be cleaned out so the grout lines can be completely filled with grout. If it's not, you can get uneven thicknesses of grout, think of it as a veneer of grout over a blob of thinset. That can result in uneven water absorption, the grout cracking, etc. All that aside...with this being your second go-around, he should have install the sloped Kerdi Tray and thinsetted it to the subfloor. Then he should have set the Kerdi drain. Then he should have thinsetted Kerdi Membrane (an orange colored sheet material) over the Kerdi Tray, then tiled on the Kerdi Membrane. I'd be interested in how he tied the Kerdi Membrane in with the wall membrane IF he used Kerdi Membrane over the Kerdi Tray. Best. Mongo

Kendog-- As to the first two choices, I think either one would aork aestheitcally speaking. It would really be a matter of which look YOU like best. We're planning to use pencil rail around our niches as well as above and below the stone and glass liner. Would it look best with pencil around the window as well or could we just overlap the tile there? I would NEVER just overlap the tiles. Being you're going to use the pencil liner for trimming the niche, I don't think it would look out of place if you were to trim out the window as well. The pencil trim has a higher profile than the tile. Should all of it be cut down at the back to make it more flush with the tile if we use it to cover the edge where the tile meets the wall? No-- it's MADE to have that kind of protruding profile. Trim will be needed on the opposite wall where the half wall ends or maybe we could try to bullnose this with a router? The color of the tile edge nearly matches the color of the tile face. Nearly isn't close enough. Either it's exact, or it's not good enough. If you'd rather not use the pencil liners there, I'd use one of Schluter's bullnosing strips. as for the curb, you could always use a marble threshold, thereby elliminating the need for bullnose. Not sure about yours, but most curbs, after backerboard and tile, are about 5 1/2" wide, and a 6" wide threshold set flush to the tile on the outside of the curb, will give you just enough of an overhang on the inside to provide for a nice drip edge. This will do a couple of things for you. First, it'll provide another layer of protection for the curb. Secondly, it'll provide for a nice flat surface for the shower door to sit on, and third, it looks alot nicer than two back to back bullnose pieces. Like this: The floor is about 18 square feet. Do you think it would work well if we cut our wall tile into 4 inch squares to use for the floor? Could we just sand the edges to make them smooth or would we need to use a router? You COULD cut them down, but if the floor isn't perfectly flat, you could end up with uncomfortable edges under your feet. Again, unless the face and edge of the tile look exactly the same, you don't want to use ANY kind of abraiding process (router, sand paper, grinder, polishing wheels) that will show in the finished product. Our tile is rectified porcelain and we'd like to use 1/16 grout lines if possible. If it's rectified, that shouldn't be a problem.