<![CDATA[Annual flooding along the Martapura River cuts riparian communities in Banjar Regency, South Kalimantan, off from safe water, forcing 73% of Teluk Selong Ulu Village residents to use untreated river water during floods exceeding three days. This programme introduced SABERSIH (Saringan Ember untuk Air Bersih), a multilayer gravity filtration device built from locally sourced materials, applying a Participatory Rural Appraisal approach with 30 residents through problem-based education, hands-on assembly, and follow-up. Evaluation combined a 15-item pre-test/post-test, a skills checklist, laboratory water-quality testing, and a perception survey. Mean knowledge scores rose from 61.3 to 85.7 (39.8%), and 86.7% of participants assembled the device independently. Filtration reduced turbidity by 88.0%, colour by 84.5%, iron by 71.9%, and coliform by 86.7%, though the water still required disinfection before drinking. All participants affirmed its flood-time usefulness, and 90% intended to replicate it at home, confirming SABERSIH's potential to strengthen flood resilience in riparian South Kalimantan.]]>
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