I was vacuuming these tile floors and the grout came off. Should I fill it with cement? Is it damaging to leave it like this, should I not mop it?
- Don't use cement or thin set. Use maybe a premixed grout (can sometimes be bought in quarts). Use a grout saw to remove some of the other loose grout
- While the water can seep under easily, there's no danger in mopping. The grout let's water come back up