A method for controlling a pump system as well as to a pump system with multi-component material being dispensed under pressure using a mixer and a spray gun of the pump system, component material being pumped using at least two pumps of the pump system, said component material being stored using liquid tanks of the pump system each allocated to the pumps, said component material being dosed using dosage valves of the pump system each allocated to the pumps, said pump system being controlled by means of a control unit of the pump system, said dosage valves each being regulated using an electric regulating device of the control unit each allocated to the pump, a mixing ratio of the component materials being regulated using a control device of the control unit, said regulating devices being regulated by means of the control device.