I offer ceramic tile, natural stone, concrete, and grout cleaning and sealing services. I use a rotory water extraction process that applies high pressure water to the surface to be cleaned in a rapid rotational manner. The jet spray action of the high pressure water does most of the work. No abrasives are used.
At the same time the waste water is vacuumed up and dispensed in the sewage system. No toxic chemicals are used. The surfaces are first sprayed with a citrus based high alkali cleaner, allowed to soak for 15 minutes, then rinsed with the rotary tool as described above. The extraction process is so effective that the surfaces are dry in under 7 minutes.
I use tools made by Hydro-Force, called the Gekko tools. Primarily the rotary tool is called the Hydro-Force Gekko SX-15 model AR51S.
For water extraction I use a Festool CT 48 E Wet/Dry vacuum.
I use high quality floor/grout sealants made by Hydro-Force called the "Viper" line of solutions.