The project revolved round production of suitable water sanitizer in portable form from food grade chemicals to use in sanitizing polluted water from river, lagoon, well and other surface sources that could be used for domestic purposes.The chemicals employed for the production include sulphate salt, hypochlorite, starch, bicarbonate and lime. These performed various functions such as coagulant, pH modifier,binder and biocide for destroying microbes inherent therein. Four formulations were compounded and used to treat polluted water with different dosages for specific volumes of polluted water samples. The assessment was carried out with imported water sanitizer serving as control. The best formula that performed at an optimum time competing favorably with imported sanitizer was chosen as FIIRO sanitizer. In-vitro study was carried out to check its antioxidant activities.