![Dark marks on shower stall floor grout/tiles. Tried vinegar and steam cleaner with brushing, helped a little but still left with this. : r/CleaningTips Dark marks on shower stall floor grout/tiles. Tried vinegar and steam cleaner with brushing, helped a little but still left with this. : r/CleaningTips](https://i.redd.it/uj6nubvhvyl81.jpg)
Dark marks on shower stall floor grout/tiles. Tried vinegar and steam cleaner with brushing, helped a little but still left with this. : r/CleaningTips
![How to clean grout and tile-the easy way! | Black grout, White tiles black grout, Cleaning shower tiles How to clean grout and tile-the easy way! | Black grout, White tiles black grout, Cleaning shower tiles](https://i.pinimg.com/736x/f2/af/4a/f2af4a6715e3e63a43f63cfc2ea58f37.jpg)
How to clean grout and tile-the easy way! | Black grout, White tiles black grout, Cleaning shower tiles
![flooring - How do I keep black tile and black grout actually looking black? - Home Improvement Stack Exchange flooring - How do I keep black tile and black grout actually looking black? - Home Improvement Stack Exchange](https://i.stack.imgur.com/sIbYI.jpg)
flooring - How do I keep black tile and black grout actually looking black? - Home Improvement Stack Exchange
![flooring - How do I keep black tile and black grout actually looking black? - Home Improvement Stack Exchange flooring - How do I keep black tile and black grout actually looking black? - Home Improvement Stack Exchange](https://i.stack.imgur.com/V8eEv.jpg)