The heavy duty cleaner I use in the video is made by “Miracle”. It’s called Heavy duty ACIDIC cleaner. It’s a professional grade cleaner for grout, tile and non-polished marble, granite and other natural Stone. Being that it is an acidic cleaner, I would recommend wearing latex gloves, eye protection, and mopping your floor with water once done cleaning your grout.
How To Clean Tile Grout
Tools And Brands I Recommend