CHASS has embraced and promoted appropriate technology solutions to address the long-standing drinking water issues in Kuttanad. One key initiative has been the widespread adoption of rainwater harvesting using ferrocement tanks to collect water from rooftops, offering a sustainable solution. The program involved consultations with the Centre for Water Resources Development and Management (Government of Kerala), the Central Ground Water Board (Government of India), and the Centre for Earth Science Studies (Government of Kerala).