Multi-functional cleaning machine

A method of cleaning a soiled surface, comprising the steps of:

• providing a multi-functional cleaning machine, comprising:
• a liquid tank containing a liquid;
• a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;
• a spray gun connectable to the outer end and having a liquid passageway and a liquid outlet;
• a cleaning-liquid supply containing a cleaning liquid;
• a cleaning-liquid line connectable to the cleaning liquid supply and to the liquid delivery line;
• an injector connecting the cleaning-liquid line and the liquid delivery line:
• a vac tank;
• a vacuum connected to the vac tank;
• and
• a vacuuming assembly constructed and arranged to bring a material into the vac tank;
• aiming the liquid outlet of the spray gun at the soiled surface;
• spraying at least a portion of the liquid and cleaning liquid onto the soiled surface at a first pressure, the cleaning liquid being drawn from the cleaning-liquid supply, through the cleaning-liquid line, through the injector, and through the liquid delivery line and spray gun;
• spraying at least a portion of the liquid onto the soiled surface at a second pressure, the second pressure inhibiting the flow of the cleaning liquid through the injector;
• and
• vacuuming liquid, cleaning liquid, and soil from the soiled surface, through the vacuuming assembly and into the vac tank.

A multi-functional cleaning machine, comprising:

• a liquid tank;
• a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;
• a spray gun connectable to the liquid delivery line;
• a vac tank;
• and
• a vacuum connected to the vac tank;
• wherein the liquid tank and the vac tank exist simultaneously as elements of the multi-functional cleaning machine.

A multi-functional cleaning machine, comprising:

• a liquid tank;
• a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;
• a vac tank;
• a wet-vac floor tool having a squeegee and being connectable to the vac tank;
• vacuum connected to the vac tank;
• and
• a wrap having a projection.

A method of cleaning a soiled surface using a multi-functional cleaning machine:

• the machine including:
• a liquid tank containing a liquid;
• a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;
• a spray gun connectable to the liquid delivery line;
• a vac tank;
• and a vacuum connected to the vac tank;
• wherein the liquid tank and the vac tank exist simultaneously as elements of the multi-functional cleaning machine;
• the method comprising the step of delivering at least a portion of the liquid onto the soiled surface.

A method of cleaning a soiled surface using a multi-functional cleaning machine:

• the machine including:
• a liquid tank containing a liquid;
• a liquid delivery line having an inner end, a pump, and an outer end, the inner end connected to the liquid tank;
• a cleaning-liquid supply containing a cleaning liquid;
• a cleaning-liquid line connectable to the cleaning liquid supply and to the liquid delivery line;
• an injector connecting the cleaning-liquid line and the liquid delivery line, the injector including a venturi tube;
• a vac tank;
• a vacuum connected to the vac tank;
• and a vacuuming assembly constructed and arranged to bring a material into the vac tank;
• the method comprising the step of delivering at least a portion of the liquid to the soiled surface.