← home / Tools / Slow sand filters for greywater⚙● toolSlow sand filters for greywaterPractices that use itSarar Transformación - school ecological sanitation (Mi Escuela Saludable / TepozEco)Multidisciplinary consulting group based in Tepoztlán, Morelos, specialized in decentralized ecological sanitation (ecosan) with a participatory approach. It drove the TepozEco urban pilot project (2003-2006) and brought school ecological sanitation (composting toilets and urine-diverting dry toilets, sand filters for greywater) to schools in Morelos and the Sierra de Oaxaca. Its SARAR method empowers communities to plan, implement and monitor their own systems.● Paused· scale subnational
