A dual pump dispensing system that comprises: a container that has: a first reservoir , a neck , and access into the first reservoir through an opening in the neck of the container; a collar that attaches to the neck of the container ; a cartridge that comprises: a top that is secured into the collar ; a bottom that is inserted through the neck of the container and that extends down into the first reservoir of the container; an interior wall that divides the interior of the cartridge into a passageway and a second reservoir , wherein: the passageway is opened at both ends of the cartridge, and the second reservoir is closed at the bottom of the cartridge; a first mechanical pump dispenser that sits in the passageway of the cartridge and that has: a dip tube that extends down into the first reservoir , and an upper stem that protrudes through the collar ; a second mechanical pump dispenser that sits in the second reservoir of the cartridge and that has: a dip tube that extends toward the bottom of the cartridge, and an upper stem that protrudes through the collar ; an actuator that comprises two inlet ports that lead to at least one exit orifice , wherein each inlet port is able to receive one of the upper stems . a container that has: a first reservoir , a neck , and access into the first reservoir through an opening in the neck of the container; a first reservoir , a neck , and access into the first reservoir through an opening in the neck of the container; a collar that attaches to the neck of the container ; a cartridge that comprises: a top that is secured into the collar ; a bottom that is inserted through the neck of the container and that extends down into the first reservoir of the container; an interior wall that divides the interior of the cartridge into a passageway and a second reservoir , wherein: the passageway is opened at both ends of the cartridge, and the second reservoir is closed at the bottom of the cartridge; a top that is secured into the collar ; a bottom that is inserted through the neck of the container and that extends down into the first reservoir of the container; an interior wall that divides the interior of the cartridge into a passageway and a second reservoir , wherein: the passageway is opened at both ends of the cartridge, and the second reservoir is closed at the bottom of the cartridge; the passageway is opened at both ends of the cartridge, and the second reservoir is closed at the bottom of the cartridge; a first mechanical pump dispenser that sits in the passageway of the cartridge and that has: a dip tube that extends down into the first reservoir , and an upper stem that protrudes through the collar ; a dip tube that extends down into the first reservoir , and an upper stem that protrudes through the collar ; a second mechanical pump dispenser that sits in the second reservoir of the cartridge and that has: a dip tube that extends toward the bottom of the cartridge, and an upper stem that protrudes through the collar ; a dip tube that extends toward the bottom of the cartridge, and an upper stem that protrudes through the collar ; an actuator that comprises two inlet ports that lead to at least one exit orifice , wherein each inlet port is able to receive one of the upper stems . <EOS>