Several years ago I dropped a whole half gallon of paint on my tile floor! The paint easily removed from the tile itself, but it stained the light grout. I had it professional cleaned and scrubbed the grout with bleach and any cleaner I could think of….it was still stained. When I saw this Grout Restoration kit, I really didn’t think it would do much, but what the heck. HOLEY MOLEY! PERFECT! I used the cleaner as directed and then the grout color. My floor is perfect again! THANK YOU!!!!