![Any idea for the best way to clean darkened grout from between marble tiles? Most recommendations I've seen online involve chemicals that can ruin marble. : r/DIYUK Any idea for the best way to clean darkened grout from between marble tiles? Most recommendations I've seen online involve chemicals that can ruin marble. : r/DIYUK](https://preview.redd.it/any-idea-for-the-best-way-to-clean-darkened-grout-from-v0-u6bw5bs78gva1.jpg?width=640&crop=smart&auto=webp&s=4338dabf62868954f34aaf70c4888f2a5d0416ee)
Any idea for the best way to clean darkened grout from between marble tiles? Most recommendations I've seen online involve chemicals that can ruin marble. : r/DIYUK
![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
![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)
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/sIbYI.jpg)