I just cleaned some tile and grout in Broomfield Colorado and I used my Rortovac wand with tile attachments. It was a man made tile so I was able to use an acidic cleaner. It turned out great. I didn't think the wand would work since it is not heavy like our floor machine. Has anybody used it? On natural stone with an alkaline cleaner?
It is nice to used rotavac, the cleaning passes are from all directions rather than just back and forth. This is what produces better cleaning results with far less operator fatigue.