Repairing 1960 tiled shower stall

I just spent 10K on labor alone to remodel my master bath. I purcahsed all Hand made tiles (Walker Zanger) and the contractor came highly recommended..... After less than one month of use (and I did seal the shower walls and floor with a very good sealer), I noticed a hairline crack in the Grout...

My minute Manhattan bathroom has a 36" x 36" tiled shower stall enclosed by 3 walls (yes, the bathroom is only 36" wide!) and a 6" marble ledge. The whole bathroom, tiles and all, is going to be demolished for the remodel. Here's my question: can I make a small soaking-type bathtub in this 36"...

I have a shower drain (25+ year old house) that is leaking into the ceiling. I've cut the ceiling and determined the leak is coming from the top most part of this drain: 12635 From the top of the shower, you'll see the drain is embedded into the tile - the debris is the remnants of a failed...

There is an existing stall shower in the basement, however it isn't hooked up anymore. I want to fix it up and get it going, but I have never done anything like this before...any suggestions?

We had our shower stall replaced in 1998 due to the pan beneath the tile leaking... A new liner and re-tile job was done... Well, now there is a wet spot below in the same spot and after opening the ceiling, I find that the plastic fitting going into the plastic floor hub is leaking. Looks like...