My house was built in the 40's and it has that little mosaic tile. There are a few places where I need new grout but most of it just needs to be cleaned up.

Do I have to dig out ALL of the grout? Is there something that I could regrout with that would stick to the old grout and make it look fresh? What about some of the new epoxy grout?
Sally:eek:

Id try some clorox to clean it with, maybe a tooth brush on the grout lines, now if it is a color grout then it may bleach the color. But if your going to regrout the whole floor then it really doesn't matter.
They do make a dye for grout that you can buy, it goes on like a paint,