Salt-like white powdery crystals on the outside wall
Posted by Helen Thompson, on
Salt-like white powdery crystals are appearing on the outside wall of my house - on the outside wall of my house - looks like the bricks are leaking salt! It's below the damp-proof/floor level. When I wipe it off, a couple of the bricks have started to crumble. Also appearing on inside wall in cellar. What is it and how can I deal with it?
