The subject of this invention is to provide a simple sprayer capable of making the spray operation more lasting even on the occasion of using a battery charged with electricity. The solution of this invention is as following. A simple sprayer 1 is equipped with a hand-pulling type transporting vehicle body 4 having at least one wheel 8 a chemical fluid tank 14 and a diluent tank 15 mounted on the transporting vehicle body 4 a pump for pumping out chemical fluid in the chemical fluid tank 14 and diluent in the diluent tank 15 a mixer for mixing the chemical fluid from the chemical fluid tank 14 and the diluent from the diluent tank 15 so that the mixture fluid can be sucked in by the pump, a spray nozzle 50 for injecting the mixture fluid discharged from the pump a solar panel 5 for converting the solar energy into electricity a battery for saving the electricity from the solar panel 5 or external power sources and a power supply device for supplying electricity from the solar panel 5 or external power sources to the pump.
