SCOPE piloted ECOSAN Toilets in Kaliyapalayam as an alternative model for stopping open defecation and enable the poorer sections to have a toilet in their homes. After exposure in many workshops and seminars it is now paying full attention to using the urine and faeces on a scientific manner with close linkage with the Research Institutions and Universities.

In the first model at Kaliyapalayam and in 100 houses in Sevanthilingapuram the wash water and urine were collected in the same mud pot. However in II Phase 25 houses in Sevanthilingapuram and all subsequent constructions the design of the toilet has been changed. The squatting slab of the toilet has a drop hole in the middle, the urine bowl with a hole in the front and a wash water bowl with a hole in the rear. The urine is collected through a pipe in a mud pot with holes and buried in a pit near the toilet. .

The wash water through the hole in the wash water bowl is taken to a filter bed which would filter faecal matter in wash water. From the filter pit the water would flow out and help the vegetation near by. A blackened vent pipe fixed in the compost chamber in the ECOSAN Compost Toilet quickens the dehydration of the faecal matter.