Hi Kristy, sorry you are having problems with your grout. Here is a video that I hope will help you. Good luck How to Clean Grout (Easy Household Cleaning Ideas That Save Time ...
Mar 8, 2011 - Maker's Cleaning Cloths: http://MakersClean.com Subscribe for a Cleaner ... How to Clean Grout (Easy Household Cleaning Ideas That Save Time ... Best Way To Clean Tiles Grout - 3 Experiments & Comparisons ... How to clean grout in the shower or your floors (without getting on your hands and knees).
I applied Chlorox toilet bowl cleaner between the tiles in the grout lines. Let it set an hour or so, then flushed it with water from a pump up sprayer. Vacuumed the water with a wet vac and mopped it dry. It didn't do anything for the tile with glaze worn from over 40 years of wear, but the very dingy grout looks much cleaner. Have re-tiled one bathroom recently and will likely do the uglier one soon.
This method works well on floors, not sure how you would do anything with a vertical surface such as a wall. Do be careful not to let the Chorox cleaner escape onto carpeted or hardwood floored area as you rinse it. I'm sure it would bleach carpet or attack the finish on floors.
Here are some different ways to clean grout: https://www.curbly.com/2254-how-to-clean-tile-grout
Hi Kristy - This is the shower cleaner that we use to help keep grout and tiles clean and minimize the mildew - it works on kitchen grout too. Hope this helps! Hugs, Holly
PS - I'm getting ready to release a FREE eBook with recipes for all of my homemade and all-natural cleaners. If you want to know when it's released, you can get it here --> https://pinkfortitude.com/thank/
Cannot go to the site. Another site comes up wanting me to
Sign up when I don't want to & I cannot proceed to info re grout.
I used grout paint pen on my dark gray grout to make it white. Took a while but came out beautiful.