Yayasan Tirta Indonesia Mandiri
Tirta Cupumanik (TCM) are silver enhanced ceramic ‘pot’ water filters for household drinking water treatment manufactured in Indonesia based on the open source technology promoted by Potters for Peace.
30 USD, bulk pricing available.
Household water treatment methods and products available in local market.
Locally sourced clay and risk husks are processed, mixed with water, pressed into the filter shape and fired to a ceramic state, flow rate tested to ensure production consistency and coated with silver nitrate solution.
Market based sales, NGOs, other organizations and institutions.
How often/when should maintenance be performed?
Specifications: Height: 48 cm; upper diameter: 35 cm; unit weight: ~8 kg. Flow rate 1-3.5 liters per hour.
To rejuvenate flow rate when filters clog, users scrub ceramic filtering element with a brush.
Available in country: tap for dispensing water, safe storage container, ceramic filtering element.
2-3 years depending on turbidity of source water
Performance targets: 2 log reduction in bacteria, and to some extent reduces iron and manganese content in the water.
Filters are tested at a local accredited laboratory for physical, chemical and bacteriological characteristics.
Pre-filter or settle very turbid water (> 5NTU).
Currently household water treatment technologies are not regulated in Indonesia.
Factory carries out quality control evaluations and water quality is tested at a local accredited laboratory.
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