Updated on September 29, 2023


Created on May 27, 2016

Tirtacupumanik (TCM)


TCM manufactures ceramic pot water purifiers, inspired from the technology introduced by Potter for Peace.

Developed By
  1. Yayasan Tirta Indonesia Mandiri
Content Partners


Product Description

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.

Target SDGs

SDG 6: Clean Water and Sanitation

Market Suggested Retail Price


Distributors / Implementing Organizations

Manufacturer in partnership with the Ministry of Research & Technology has established a business unit responsible for marketing and distribution, individual sales.

Manufacturing/Building Method

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 product consistency and coated with silver nitrate solution. It is made of a mixture of clay and rice husk burnt about 600-800º C which in turn produces a ceramic pot through a vitrification process (changing the nature of clay to ceramic). Ceramic properties that can absorb oxygen produce fresh drinking water such as jug water.

Intellectural Property Type

Open Source

User Provision Model

Users can obtain the product through market-based sales, NGOs, other organizations and institutions.

Distributions to Date Status


Type of filter

Ceramic pot filter

Primary material of construction

Filters are manufactured with clay, rice husk, silver nitrate.


There is a potential for silver in filtered water, below secondary guideline values of 0.1 mg/L

Manufacturer-specified flow rate (L/hr)

1–3.5 liters per hour when full

Bacteria reduction

2 log

Virus reduction


Protozoa reduction


Heavy metals and/or arsenic reduction

TCM is only suitable to treat water which doesn’t have hazardous metals in it

Maximum recommended influent turbidity level (NTU)


Effluent turbidity levels (NTU)

99% removal for <5 NTU

Maintenance schedule

When the filtration rate reduces it can be cleaned up with a scrub pad and water, but soap should not be used.

Manufacturer-specified lifetime volume (L)

~35,000 L

Safe water storage integration

Depends on size of receptacle, ~6 L

Design Specifications

The product consists of ceramic pots which have taps and lids attached. It comes in 4 different varieties based on the quality of outer body and size.

Product Schematics

Technical Support

To rejuvenate flow rate when filters clog, users scrub ceramic filtering element with a brush.

Replacement Components

Available locally: tap for dispensing water, safe storage container, ceramic filtering element.


2-3 years depending on turbidity of source water

Manufacturer Specified Performance Parameters

Performance targets 2 log reduction in bacteria, and to some extent reduces iron and manganese content in the water.

Vetted Performance Status

The product has been recognised and supported by international organisations as well as government.


TCM is suitable to treat only low turbidity water which doesn't have hazardous metals in it

Complementary Technical Systems

Pre-filter or settle very turbid water (>5 NTU).

Academic Research and References


Compliance with regulations

Currently household water treatment technologies are not regulated in Indonesia.

Other Information


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