Patent ID: 8251569

Claim:
An automated apparatus for producing a solution, the apparatus comprising: a hopper adapted to receive a chemical and a solvent, the hopper comprising a first section and a second section, the first section being separated from the second section by a grate, wherein the first section is adapted to receive the chemical and solvent, the chemical at least partially dissolving in the solvent in the first section to create a solution, and wherein the solution passes through the grate to the second section; at least one sloped plane being provided in the second portion of the hopper, the at least one sloped plane sloping towards a sump outlet; a solution sensor adapted to receive the solution from a pump via an outlet tube, wherein the solution sensor senses a conductivity and a temperature of the solution and determines a temperature compensated concentration by weight of the solution; a return tube in operable communication with the hopper; a diverter valve in operable communication with the return tube; a dilute valve in operable communication with a solvent inlet; and a controller in operable communication with the solution sensor, diverter valve, dilute valve and pump, wherein if the solution sensor senses a conductivity below a target concentration, the controller operates to increase the concentration of the solution by diverting the solution through the diverter valve by the pump through the return tube to the hopper, wherein if the solution sensor senses a conductivity over a target concentration, the controller operates to dilute the solution by adding solvent to the solution by opening the dilute valve from the pump through the solvent inlet into the return tube, and wherein if the solution sensor senses a conductivity within a tolerance of the target concentration, the controller operates to pass the solution to a storage tank discharge the solution.