Biosand water filter Ceramic water filter Tiva water filter Cost 60 USD 30 USD 50 USD Can be easily locally Availability Imported from Nairobi Kampala fabricated Lifespan May last over 10 years 3-5 years May last over 10 years Can produce up to 50 Cannot exceed 20 Quantity of water litres of water per Produces at least 60 litres of water per day. produced per day day. litres of water per day. (flow = 1-2 l/h) (flow = 36 l/h) - Very effective in - Very effective in - Removes most eliminating pathogens. eliminating pathogens. pathogens only if well - It filters irrespective - It filters irrespective used and if water Removal capacity of the water source of the water source sources is <50 NTU. (i.e. no limitation in (i.e. no limitation in - Can have turbid NTU). NTU). filtrate. - Has pure filtrate. - Has pure filtrate. Solid but heavy, Fragile, breaks easily, Solid and can be easily Solidity difficult to but very easy to moved/transported. move/transport. move/transport. Bulky – hard to transport and move while cleaning. Easy to maintain and Its pores clog very fast Easy to maintain and clean, but needs hence blocking the clean. Does not clog O & M frequent cleaning filter and reducing its easily when filtering when using turbid life span. turbid water. water source. Its extreme depth makes it difficult to wash the inside. Must be regularly used with pause period 6 to 12 hours. Need to be regularly Must be regularly used Need an additional filled as the storage Limitations with pause period 6 to storage container for capacity of this filter is 12 hours. the filtered water with limited. high risks of contamination. Easy to accept and Acceptance can be adopt. People Relatively easy to Acceptance difficult, especially appreciate the storage accept and adopt. EVIs. capacity of the filter (they can easily pour 1
Biosand water filter Ceramic water filter Tiva water filter Cost 60 USD 30 USD 50 USD Availability Can be easily locally fabricated Imported from Nairobi Kampala Lifespan May last over 10 years 3-5 years May last over 10 years Quantity of water produced per day Can produce up to 50 litres of water per day. (flow = 36 l/h) Cannot exceed 20 litres of water per day. (flow = 1-2 l/h) Produces at least 60 litres of water per day. Removal capacity - Removes most pathogens only if well used and if water sources is <50 NTU. - Can have turbid filtrate. - Very effective in eliminating pathogens. - It filters irrespective of the water source (i.e. no limitation in NTU). - Has pure filtrate. - Very effective in eliminating pathogens. - It filters irrespective of the water source (i.e. no limitation in NTU). - Has pure filtrate. Solidity Solid but heavy, difficult to move/transport. Fragile, breaks easily, but very easy to move/transport. Solid and can be easily moved/transported. O & M Bulky – hard to transport and move while cleaning. Its pores clog very fast hence blocking the filter and reducing its life span. Its extreme depth makes it difficult to wash the inside. Easy to maintain and clean, but needs frequent cleaning when using turbid water source. Easy to maintain and clean. Does not clog easily when filtering turbid water. Limitations Must be regularly used with pause period 6 to 12 hours. Need an additional storage container for the filtered water with high risks of contamination. Need to be regularly filled as the storage capacity of this filter is limited. Must be regularly used with pause period 6 to 12 hours. Acceptance Acceptance can be difficult, especially EVIs. Relatively easy to accept and adopt. Easy to accept and adopt. People appreciate the storage capacity of the filter (they can easily pour 1
ACF_UG-WASH_Capitalisation_-_POUs_VF.docx