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PureMadi Ceramic Water Filter

PureMadi uses a simple, yet effective method to manufacture ceramic water filters. They use low-cost local materials (clay, water, sawdust) that are readily available. Furthermore, the filter manufacturing process can be performed with local labour. This empowers local communities and helps to minimize filter production costs and pricing.

  • Easy to Use.
  • Portable Bucket System.
  • No connection to Pipes.
  • Filter Water on tap.
  • Flow Rate 1½ - 3 litres per hour.

Please note do not drink the first 10 litres of water that passes through the filter. Please see instructions for use here.

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Excl. Tax: R 810.43 Incl. Tax: R 931.99

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Product Description


The filters removed between 97.8% and 100% of the applied bacteria; colloidal-silver treatments improved filter performance, presumably by deactivation of bacteria. The quantity of colloidal silver applied per filter was more important to bacteria removal than the method of application. Silver concentrations in effluent filter water were initially greater than 0.1 mg/L, but dropped below this value after 200 min of continuous operation. These results indicate that colloidal-silver-impregnated ceramic filters, which can be made using primarily local materials and labour, show promise as an effective and sustainable point-of-use water treatment technology for the world’s poorest communities.

The filters are typically made with local labour and materials (clay, water, and a combustible organic material such as sawdust, flour, or rice husks). The filter is formed using a filter press, air-dried, and fired in a flat-top kiln, increasing the temperature gradually to about 900 °C during an 8-h period. This forms the ceramic material and combusts the sawdust, flour, or rice husk in the filters, making it porous and permeable to water. After firing, the filters are cooled and impregnated with colloidal silver by either painting with, or dipping in, a colloidal-silver solution. The colloidal silver is hypothesized to act as a microbial disinfectant.

Each filter is tested by measuring the water flow rate to ensure it is between 1 and 2 L/hr. This test is the sole design criterion (other than the physical dimensions of the filter). A typical filter lifetime is 2–3 years; it must be periodically cleaned with a brush to maintain the design flow rate.


  • Ceramic Water Filters infused with Colloidal Silver.
  • Long Lasting Low Maintenance.
  • Filters out 99%-100% harmful Bacteria's.
  • Low Cost, Affordable.
  • Health Benefits (Residue of Colloidal Silver in Drinking Water).
  • MADE IN S.A.
  • Bucket Dimension: 340 mm x 333.5 mm.
  • Weight approximately: 5 kgs.
  • Ceramic Water Filter Dimensions: 320 mm x 190 mm.

Additional Information

Additional Information

Disclaimer Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.
Guarantee/ Warranty 3 month product warranty


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