the substance flows from the cartridge through gravity it is also contemplated that the drawer section of the washing machine could be tilted or adjustably tilted such that the gravitational flow is enhanced in another embodiment the washing machine has drawer capacity to accept four different cartridges including a stain removing cartridge with an integrated stain remover sprayer the stain remover cartridge has a sprayer at the end of a tube which is connected to the stain remover cartridge the sprayer includes a trigger which can be pulled to dispense a stain remover substance contained within the stain remover cartridge thus a user may quickly and efficiently treat a stained item of clothing by using the sprayer integrated with the dispensing system it is also contemplated that more than four cartridges could be inserted into one or more drawers in the washing machine in another embodiment the barcode includes data such as the type of substance within the cartridge volume of the cartridge manufacturing date serial number or codes or encrypted data that verifies the source and authenticity of the laundry detergent cartridge by checking the data on the barcode of the cartridge the system ensures that only compatible cartridges manufactured for the system will dispense the substance contained therein furthermore the appropriate volume and timing of the substance to be dispensed is automatically read in by the system and implemented accordingly thereby reducing user error in an alternative embodiment the barcode includes only encrypted identifying data that is used to query a remote network connected server by way of.