Mix on demand smart backpack sprayer with removable concentrate tank

A backpack sprayer system comprising:

• a) a mounting bracket including a battery receiving fixture configured to removably receive a battery therein;
• b) a first tank mounted to the mounting bracket and configured to hold a diluent;
• c) a second tank mounted to the mounting bracket and configured to hold a liquid concentrate, wherein the second tank is separable from the first tank and selectively, individually removable from the mounting bracket;
• d) a mixing manifold mounted to the mounting bracket, wherein the mixing manifold has a first inlet fitting configured to receive a fixed amount of diluent from the first tank and a second inlet configured to receive a selectively adjustable amount of liquid concentrate from the second tank, whereby the fixed amount of diluent and selectively adjustable amount of concentrate are combined to form a mixed solution, and wherein the mixing manifold includes a mixed solution outlet;
• e) a positive displacement pump mounted to the mounting bracket, wherein the positive displacement pump includes a suction port fluidly coupled to the mixed solution outlet and a pressure port configured to fluidly couple with a spray device;
• and
• f) a control unit mounted on the mounting bracket, wherein the control unit is configured to receive power from the battery.