Laundry machine add-on box for detergent dispensing

A method for automatically adding clothing-washing detergent to a washer machine, comprising the actions of:

• providing a laundry machine add-on box having:
• a housing structure mountable to a laundry washer machine, having a left-side panel, a right-side panel, a bottom panel, a front-side panel, a rear-side panel and a top lid, said front-side panel having an aperture for mounting a detergent dispense window box, said bottom panel having an aperture for mounting at least one detergent dispense conduit to a laundry washer machine, a plurality of storage containers for storing detergent, said storage containers being removably positioned inside said housing structure;
• at least one electric liquid pump mounted inside said housing structure;
• and at least one timer-setting user interface that is electronically connected with at least one timer circuit, said timer circuit being electronically connected with said at least one electronic liquid pumps and switches off power supply to at least one of said electric liquid pumps after a pre-defined period of time;
• providing a plurality of liquid dispensing tubings each having a first opening end connecting to one of said plurality of storage containers, extending through said at least one electric liquid pump, and having a second opening end connected with a dispensing tip or nozzle, said dispensing tip being fixedly mounted on said detergent dispense window box;
• mounting said laundry machine add-on box to a washer machine that has an aperture for adding detergents into the washer machine;
• connecting the timer-circuit to the power switch of the washer machine;
• and
• automatically adding detergents by turning on the timer-circuit.