If your tile is sealed properly and you keep it up when you're supposed to then nothing should penetrate the sealant so the grout should be fine. Now, if you don't seal the grout then yes, it will stain and possibly absorb smells too.
As for the walking off the pad...have you tried putting the pad inside a doggie litter pan? That worked for us...Riley wasn't sure at first so I put his used pad in the litter pan and then he got the idea of what it was for.
Good luck! |