How do I verbs travertine? I installed travertine tile myself and didn't have time to trademark it....

I installed travertine tile myself and didn't have time to trademark it. Now, its 6 months later and I touch it needs a thorough cleaning past sealing it. Some tiles own also cracked. Do I repair with grout? What's my best approach? I've read using a polishing piece of equipment for travertine, but not sure that's the best thing surrounded by my case.
What is the best track to break down...
Answers:    use a vinagar /water soulition to verbs it, then trademark it WHEN it has dryed, yea grout the cracks,
What the oldest fully functional electrical appliance surrounded...
the idea the tile is cracking is because it was not installed next to the right backer board. it will verbs to crack since it was done wrong............NEXT TIME YOU DECIDE TO DO A PROJECT YOURSELF DO YOUR HOMEWORK AND DO IT RIGHT THE FIRST TIME.............