This project, executed and completed during the year 2021, considered, on one hand, the building of 60 sanitary modules with reuse of grey water (from the shower and the washbasin) in the toilet in the district 9 of Cochabamba and, pn the other hand, 58 household connections together with biological filters for recycling grey water from the laundry for use in urban agriculture in Viacha (El Alto).