A method of extracting essentially pure, fresh water from polluted or salt water by forcing the water under pressure against a semipermeable membrane, which passes the pure water molecules and filters out salts and other dissolved impurities. all reverse osmosis units produce waste water. the waste water ratio to filtered water ratio can be changed, but not eliminated. Wastewater is any water that has been affected by human use. Households may produce waste water from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. The study aims to assess the knowledge regarding Reverse Osmosis wastewater utilization among the general public of Indore District. Material and methods A quantitative research approach, the descriptive research design was adopted for the study. Total 30 general public selected by using Non randomized purposive sampling technique was used. Data were analyzed using descriptive and inferential statistics. Major findings of the study it is found that among the general public are 3.3% of the general public having is adequate knowledge and 13.33% is inadequate knowledge and 83.33% is moderate knowledge. Statistical analysis showed that the mean value of reverse osmosis waste water utilization is 7.7. A significant difference was found at the score. (p>0.05 Thus the study revealed that there is a significant association with the selected socio-demographic variables regarding knowledge of reverse osmosis waste water utilization among the general public. so it conculated that alternative hypothesis H01 was accepted and null hypothesis H0 was rejected. Hence the research hypothesis HA1 is accepted there is significant Association between the knowledge scores regarding reverse osmosis waste water utilization and socio demographic variables of general public.