The provision of toilets on Mantanani has become a priority. In consultation with the community, specific locations have been selected to build a number of private toilet cubicles to improve sanitation and reduce pollution on the island. The toilets will be connected to an effective and large septic tank system which, in turn, is connected to another tank with multi-layered filter of rocks, sand, lime and charcoal, preventing human waste from seeping directly into the ground and surrounding areas.