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 (70a, 70b) that lead to at least one exit orifice, wherein each inlet port is able to receive one of the upper stems (30b, 40b). 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 (70a, 70b) that lead to at least one exit orifice, wherein each inlet port is able to receive one of the upper stems (30b, 40b).