How to return old grout to its original white color?
We just had our 1940s bathtub reglazed and it looks incredible. Now my problem is that since the tub is so white, my old floor grout looks quite dirty. I had cleaned it with a bleaching cleaner before the tub was reglazed and thought the floor looked pretty good, but next to this shiny white tub it looks really bad.
What can I do to fix the grout on my floor? It's light grey tiles with small white grout lines. The bathroom is quite small, so I'm willing to do anything even if it's labor intensive. With that being said, I'd prefer not to pull up all the grout if I can avoid doing it. LOL
I haven't tried straight bleach yet, that might be my next step.
Thanks in advance!