Bacstop-tst water disinfection systems are made from tetrasilver-tetroxide and offer a reliable, safe and cost-effective alternative to other water sanitation products. Bacstop-tst is new and unique proprietary delivery system. It is a disinfectant for use in drinking water treatment, water containers, surface spray and hand wash. Bacstop-tst is complimentary to all other water treatment methods currently available. Many water treatment systems dont incorporate disinfection and dont leave any residual antibacterial in the treated water. Bacstop-tst can provide a residual disinfectant in the water for equipment that kills bacteria (ultra-violet and ozone), but provides no post treatment (residual) disinfectant. The Bacstop-tst technology can be used successfully in industrial, commercial, domestic, rural and marginally economic applications eg. Aid, emergency and relief initiatives.