Utilising friendly bacteria these soluble bags help to keep the water flowing freely. You can see immediate improvements after treatment. Quadrasan Purge contains a biologically concentrated active powder formulation that is designed to deal with waste products. Using this speeds up the degration of paper, protein and waste product. The odours that these produce are reduced. The bacteria in this powder will colonise the waste material such as uric acid, and will degrade the waste until the system is clean. The formulation removes obnoxious odours from the sanitary system and is completely safe to use with no special handling requirements.