Quote:
Originally Posted by gsxrken
John that attachment looks like the bomb I was looking for.
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Yep, that's what a lot of pros down here use (lots o' Travertine here in AZ), with or without additional cleaning agents. I'd definitely look into filling/sealing once cleaned, and reapply a quality polymeric sand (in the right color).
Also, it looks like most of that staining is from nearby organic material from the landscaping (grass/dirt/foliage/etc.). It might be a good idea to create a bit of a buffer between the tile and the grass (decorative rock, etc.), and re-think the planter situation/contents, etc. YMMV...