Cleaning a messy grout job
I had a "professional" come in and put in a granite vanity and a new backsplash. The granite came out great, but the grout job on the tile is not perfect (or close to it.) There are a number of areas where the grout looks like it needs to be cleaned up. The backsplash is a slate glass mix. It has not been sealed yet.
Any idea on how I can clean this up? Are there any products out there that I can use?