I have this limestone floor that is in great shape but seems to be very dirty in the high traffic areas. There were some carpet runners laid down and it is quite a difference in color between the clean and the dirty.
I ran my floor machine with neutral cleaner and a hog hair pad. I managed to get a lot of the dirt out but not all. Can still see a difference between where the carpet was.
I don't want to get too aggressive on this floor but wanted to know if anybody had any ideas on how to get it cleaner.

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