I laid over 800 sq. We did not seal it before grouting. I used a med gray grout but i had no issues even with the oranges and reds in the tile. Cleaned up quite easy except for the nooks and crannies of the slate but that has nothing to do with not sealing it as far as I can tell. Still have not sealed it 5 years later. Cleans up great with some 409 or Clorox cleaner. Even the kitchen is fine.

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- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.