Pebble floor in shower
 

Here is a problem situation we are encountering. Several customers want pebble mosaic on their shower floors. The last installer was unable to provide drainage on the floor so it has puddles in a few areas. Since then we have not been able to find anyone who can guarantee drainage on this type of floor. Anyone with experience with this problem and how to overcome it?

the drainage should all be done with the pitch of the mudbad, the type of tile shouldn't matter.
find an installer that understand how to mud a floor.

Yeah and it wouldn't hurt to have a little extra pitch when using pebbles. :)

I think it could also come down to careful grouting and installation.
I'd never install pebble on a sheet as it comes from the supplier in a shower.
If you want big huge groutlines then you'll have to slope that to.
If you place them individually there will most likely be the best drainage as the groutlines will be smaller allowing for a flush grouting resulting in no risk of puddling.