Grifaid Community Filter
Grifaid Community filters are portable membrane filters that can be used for schools, clinics and other small communities.
Grifaid Community Filters are portable membrane gravity filters that can clean biological contamination and solids to provide safe drinking water for communities.
Global (More than 40 countries as of 2017)
Goal 6: Clean water and sanitation
Communities, disaster relief areas
The product is mass-produced.
Registered in the UK.
NGOs and users can request orders for the Grifaid filters by sending the manufacturers a request form mentioning the details of the project for which it is required.
Is this filter designed for individual, household, or community use?
Manufacturer-specified flow rate (L/hr)
Laboratory-evaluated log scale removal rate of bacteria
Does the system use microfiltration, ultrafiltration, nanofiltration, or reverse osmosis?
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)
Description of materials of construction
Is there safe water storage integrated into this product?
What is the total number of liters that is recommended can be filtered?
Grifaid Community Filter can retain dust, bacteria, viruses, cysts and protozoa in the membrane filter equivalent to 0.01 microns. Sand and other coarse particles are screened by a washable prefilter screen with 0.12mm holes. Dirty water is periodically flushed out of the system. Untreated water is collected in a vessel or a bucket, the product is placed so that the foot strainer is immersed in the water and is them pumped to deliver safe drinking water.
The dimensions of a packaged system are 250 x 250 x 280 mm a with dry weight of 12 kg.
The pump “O” ring seal is available. Spare rings are stored on the piston rod.
At least 6 years. However, the life of a membrane depends on the quality of the source water and operational maintenance.
The manufactures claim that the filter can last for at least 6 years and reduce bacterial to safe levels.
The water from the filter has been tested by universities as well as national bodies. Grifaid filter has also been monitored in Gambia periodically after their distribution in June 2013. The filter lasted for four years with no sign of coming to the end of the working life.
Newcastle University, University of Arizona, Kenya Water Institute, Ghana Standards Authority, The Gambia Dept. of Water Resources and Rwanda Bureau of Standards.
Proper safety instructions need to be followed while operating the filter
A container filled with unfiltered water and a vessel to store treated clean water.
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