Tile floors with grout can get really dirty and hard to clean. Older floors can be especially difficult to clean up 100%.
When you think of tile floors that need cleaning sometimes you think of just normal, basic cleaning. In the case of these tile floors, they sustained a disaster that caused the floors to be muddy and full of debris. The drain backed up and dirty water just poured through the drain. The second picture shows after SERVPRO of Newark extracted and treated the floors. We still had to do extra work on them to work on the rust stains.