We built a house 3 years ago and our bathroom drains and outside deck tiles have some type of deposit forming on them that requires scraping to remove. We used TEC grout throughout the house and on the outside deck. The weep holes on the deck are filled with this deposit and our drain pipes on the shower are filled with it. Anyone hear of such a thing? Any ideas? freckles:wall: [url]http://forum.doityourself.com/images/smilies/wall.gif[/url]

Hi, My house was built in 1964, and it has a brick floor. At first, I thought the floor was covered with those thin, brick-shaped tiles, but examination inside a hole left by a removed swinging door reveals that the bricks are full thickness. Needless to say, the bricks are dated, and I want to apply tile over them. However, over the bricks, and the 1/2" sandy mortar between them is a shiny coating of something. It looks thin, so I'm guessing it's some sort of sealer. Can I put thinset on top of this, or will I have to do some sort of prep work? I've tiled before, but never over sealed brick. Also, on a related note, I am constantly seeing tutorials, books, and television shows where tile is simply lain over the existing floor, yet no one ever talks about the increased height of the floor. How do you deal with that? The floors in the house are all at the same height right now. For instance, the brick transitions to the tile in our sunroom right now with no change in height. And what about doors? What will I need to do to compensate for the higher floor?