Meta !Sober//iZs (OP) double-posted this 7 years ago, 16 minutes later[^][v]#962,853
Didn't work. Back to the drawing board ?
Anonymous B joined in and replied with this 7 years ago, 8 minutes later, 24 minutes after the original post[^][v]#962,854
I have a suggestion!
Buy chlorine, kitchen tissues and tape. Fold some tissues neatly into a line, dio them in chlorine and tape it to the grout. Leave it there for a day.
Anonymous C joined in and replied with this 7 years ago, 50 minutes later, 1 hour after the original post[^][v]#962,865
This is why those bottles of Wite-Out come with a grout-sized brush.
Meta !Sober//iZs (OP) replied with this 7 years ago, 13 minutes later, 1 hour after the original post[^][v]#962,866
@962,854 (B)
I did use a chlorine bleach-based toilet bowl cleaner so I'm doubtful another application of bleach will work. They come in two kinds: bleach (sodium hypochlorite) and acid-based (hydrochloric acid). I'm thinking the discoloration is from minerals in the water so maybe acidic toilet bowl cleaner will get it out.
@previous (C)
I just wish they made dirt-colored grout. I have a tan-brown car and I never wash it and it never looks dirty because it's basically dirt colored already. I don't mind so much that the grout is brown or white but I would like all the grout to be the same color, and not half brown and half white which is what I have now.
Anonymous C replied with this 7 years ago, 15 minutes later, 1 hour after the original post[^][v]#962,868
@previous (Meta !Sober//iZs)
Maybe try vinegar or CLR or something before jumping straight to the hydrochloric acid? There are different kinds of grout, right? You might want to make sure a strong acid won't damage the grout or weaken it or whatever.