Now generally cleaning the tiles with the H14 is no problem, we have a waxed marble floor which is also no problem, but if I understand this correctly you want to use stone soap detergent, well generally the manufacturer recommends only using the original detergent or at least detergents that are produced for such wet cleaners, they must not be harmful, so I would not use any other detergent as this could possibly damage the appliance. could damage the appliance.