Chlorine bleach based disinfectant tablets are safer to use than traditional liquid hypochlorite bleach. One or two tablets in a bucket of water dissolves with an effervescent action to give a ready to use solution. The active constituent is dichloroiscyanurate. Each tablet yields 200 ppm of chlorine when placed in 5 litres of cold water.
Total makes up to 1000 litres of water.