Quote Originally Posted by Sweet View Post
We have the unglazed variety and haven't had any problems with scrubbing any line off. It's no problem if you keep on to of it. I do recommend you get a 6" tile instead of 3" so that the water line is approximately in the middle of the tile instead of on a grout line. Any imperfections in the setting of the tile will be easily seen if your grout line is running on edge with a water level.
Any pictures Sweet? I'd love to see what that emerald green plaster looks like - sounds cool.