Q: Faucets leaked in my son-in-law’s tiled bathtub enclosure, which caused the old greenboard below them to dissolve and a few rows of tiles to come loose. I know it is virtually impossible to match ...

Q. This week: The joint between our cast iron tub and the tiling on the wall has turned almost completely black. Nothing I put on it will clean it to the point that it is white, the way it was when it ...