Washing machine system and washing method

A system, comprising:

• an enclosure;
• a drum housed within the enclosure;
• a mixing unit, housed within the enclosure, separate from the drum, and in fluid communication with the drum;
• a water supply unit coupled to the mixing unit;
• a reservoir having a conduit configured to fluidly couple the reservoir to the mixing unit;
• a supply module provided on a top surface of the enclosure, receiving a container on a top surface thereof, and having a spout inlet to receive a spout of the container;
• a hinge assembly configured to couple the supply module to the enclosure so that the supply module can be tilted with respect to the top surface of the enclosure;
• a support unit rotatably coupled to an underside of the supply module and configured to support the supply module in the tilted state;
• a container connecting assembly provided on the top surface of the supply module near the spout inlet and configured to fix the spout of a container to the spout inlet;
• and
• a reservoir receiving portion, connected to the underside of the supply module corresponding to the spout inlet, having a threaded exterior portion,
• wherein the reservoir has a threaded interior portion which mates with the threaded exterior portion of the reservoir receiving portion so that the reservoir is removably connected to the reservoir receiving portion.