I hope everyone is doing well. Our bathroom is about 10 years old (i.e. original with home). The grout in the bathroom after 10 years wasn't looking it's best. A little dull and stained - it's white. So I decided to sand it. It looks much better! Well obviously I should have posted this before doing it. But I just wanted to try it. I was wondering: 1. Is this something anyone has heard of before? 2. Do I have anything to worry about now? 3. I was going get a tile/grout sealer to apply now. Perhaps after 10 years it needed it anyways. Is that a good idea?