Spouts of Water
Purifaaya is a ceramic water filter manufactured and distributed by SPOUTS in Uganda.
Purifaaya is a locally-made, ceramic water filter in Uganda that uses both physical filtration and chemical disinfection.
SDG 6: Clean water and sanitation
Individuals and households that do not have access to safe drinking water
Purifaaya is mass produced at the SPOUTS factory in Uganda. The raw materials (black clay, yellow clay, sawdust, and grog) are grinded and mixed together. The mixture is pressed into the filter form and touched up. Filters are fired in a wood-burning kiln at 900 °C. The sawdust is combusted leaving micropores, the main form of physical filtration. Filters are painted with silver nitrate for chemical disinfection. They are then packaged and distributed to various partners.
Open sourceInterview with representative
User can purchase the product from local partners and distributors
According to the 2016 Annual Report, roughly 10,000 units have been distributed from 2015 to 2016.
Description of the type of ceramic filter (pot, candle, or disk)
What primary material is used (ceramic, mud, clay etc.)?
Additional materials added to improve disinfection
Manufacturer-specified flow rate (L/hr)
Laboratory-evaluated log scale removal rate of bacteria
Laboratory-evaluated log scale removal rate of viruses
Laboratory-evaluated log scale removal rate of protozoa
Reduction levels of heavy metals and/or arsenic through this treatment system
Manufacturer-specified maximum level of inlet turbidity (NTU)
Range or value of outlet turbidity levels (NTU)
How often/when should maintenance be performed?
What is the total number of liters that is recommended can be filtered?
Is there safe water storage integrated into this product?
Available from manufacturerInterview with representative
Manufacturer recommends replacing the filter every 2-3 years to keep filtering process from slowing down. The filter will always remain effective separating out impurities. Additional replacements available from manufacturerInterview with representative
Water collected through filter tap was tested for bacteriological, physical and chemical constituents to ensure the safety of the water and compared to the water before it went through the filter. The percentage removal rate was calculated and it’s sustainability. Purifaaya has also successfully performed in disaster relief situations like Tsunami in Sri Lanka and Flooding in Dominician Republic. More info here.
National water quality reference laboratory under Uganda Ministry of Water and Environment
Regular cleaning and maintenance of ceramic water filter required in every 14 days
Meets standard of safe drinking water by the Uganda Ministry of Water and Environment.
Laboratory testing of water cleaned by Purifaaya include parameters like conductivity, pH and turbidity measurements and testing total Coliforms and E. coli by decomposing organic matter.
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