Lack of enough water is one of the greatest risks to humans and the environment. The increase in demand for this precious and limited resource has caused the emergence of different strategies to control and manage Desalinated Water, for example, the reuse of grey water. In this research discontinuous sand filter, Electrocoagulation, photo-Fenton oxidation, and active carbon filter have been used in lab environment to remove COD, BOD, Turbidity, overall phosphorous, and detergent from a restaurants grey water. The treatment options were used in 3 different concentrations 484 mg/lit - 712 mg/lit - and 904 mg/lit. Sand filter and electrocoagulation have been used as pre-purification to reduce contamination and turbidity of grey water before the process of photo-fenton. In this research variables of sand filter and carbon filter, electrode type, PH and potential difference applied to the top of electrodes in the process of electrocoagulation and the effect of iron sulfate and hydrogen peroxide in the process of photo-fenton have been anaylzed. According to the data gathered, the best performance in the sand filter and carbon filter was achieved with the elimination of 38.27 percent of COD and 73.33 percent of turbidity with a rate of 200 ML per minute. Best performance in electrocoagulation was achieved with aluminum electrodes with the elimination of 69.35 percent of COD and 77.94 percent of turbidity equivalent to PH of 7, with the potential difference of 15V during 30 minutes in the process of photo-fenton has had the most amount of COD and turbidity elimination respectively 92.85 and 90 percent. The research findings show that using a multi-stage purification system the amount of COD, BOD, turbidity, detergent and overall phosphorous is respectively reduced by 99.17 - 98.64 - 99 - 84.94 - 93.54 percent.Qualitative parameters of purified grey water, purified using the system utilized in this research demonstrates that the system designed is able to remove pollutions