All the soiled bathroom waters will be treated first with a natural septic tank system, then by an aquatic garden that only lets perfectly pure water filter back into nature. This experimental program develops cheap rustic techniques of water treatment that could bring an answer to the Third World countries’ water problem in makeshift shantytowns and rural areas that can’t afford costly sewage systems.
C`est pourquoi Mentawai Adventure ne pratique pas la charité mais développe des partenariats économiques avec les clans mentawais Ces partenariats leur apportent des revenus stables et garantis en échange de leur travail, leur donnant, au travers de l`independance économique, la maitrise de leur futur.