A dispenser (100; 300), comprising: a housing (110; 310) defining an internal volume, wherein a first liquid is disposed within the internal volume of the housing (110; 310); a lid (112; 312) coupled to an upper end of the housing (110; 310) and having a first opening (113; 313) and a second opening, wherein the first opening opens to the internal volume of the housing (110; 310); a cartridge (120; 320) removably coupled with the housing (110; 310), the cartridge (120; 320) being insertable into the internal volume of the housing (110; 310) through the first opening (113; 313) in the lid (112; 312), wherein the cartridge (120; 320) comprises a lower portion, and wherein a second liquid is disposed within the cartridge; a pump assembly (130; 330) comprising a tube, the tube extending into the internal volume of the housing (110; 310) through the second opening in the lid (112; 312) and having a first inlet and a second inlet; and a connecting member positioned in the internal volume of the housing (110; 310), wherein the second inlet of the tube is fluidly coupled to the connecting member, and wherein, once the cartridge (120; 320) has been inserted into the internal volume of the housing (110; 310), the lower portion of the cartridge (120; 320) is received into the connecting member and the cartridge (120; 320) extends through the first opening in the lid; wherein the pump assembly (130; 330) is actuatable to draw the first liquid from the internal volume into the tube through the first inlet in the tube and to draw the second liquid from the cartridge (120; 320), through the connecting member, and into the tube through the second inlet in the tube so as to form a mixture in the tube and to eject the mixture from the dispenser (100; 300) through an outlet of the pump assembly (130; 330). a housing (110; 310) defining an internal volume, wherein a first liquid is disposed within the internal volume of the housing (110; 310); a lid (112; 312) coupled to an upper end of the housing (110; 310) and having a first opening (113; 313) and a second opening, wherein the first opening opens to the internal volume of the housing (110; 310); a cartridge (120; 320) removably coupled with the housing (110; 310), the cartridge (120; 320) being insertable into the internal volume of the housing (110; 310) through the first opening (113; 313) in the lid (112; 312), wherein the cartridge (120; 320) comprises a lower portion, and wherein a second liquid is disposed within the cartridge; a pump assembly (130; 330) comprising a tube, the tube extending into the internal volume of the housing (110; 310) through the second opening in the lid (112; 312) and having a first inlet and a second inlet; and a connecting member positioned in the internal volume of the housing (110; 310), wherein the second inlet of the tube is fluidly coupled to the connecting member, and wherein, once the cartridge (120; 320) has been inserted into the internal volume of the housing (110; 310), the lower portion of the cartridge (120; 320) is received into the connecting member and the cartridge (120; 320) extends through the first opening in the lid; wherein the pump assembly (130; 330) is actuatable to draw the first liquid from the internal volume into the tube through the first inlet in the tube and to draw the second liquid from the cartridge (120; 320), through the connecting member, and into the tube through the second inlet in the tube so as to form a mixture in the tube and to eject the mixture from the dispenser (100; 300) through an outlet of the pump assembly (130; 330).