About British
Berkefeld - Big Berkey
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British Berkefeld water filters are also
compact, portable, and simple to operate. Requiring no external plumbing,
each filter takes only minutes to assemble and can provide up
to 24 gallons or more of safe drinking water each day. The high-tech
silver-impregnated ceramic elements feature a nominal filtration
efficiency of : 0.2 microns >98%, at 0.5 microns >99.9%, and at 0.9
microns > 99.99% which effectively blocks waterborne pathogens and
clarifies the water.
The British Berkefeld uses 4 replacement elements
included with purchase of water filter.
Introduction
Safe drinking water is often
taken for granted, and provision is seldom made for a safe backup supply.
During emergency situations, a piped water supply may not be available,
and surface water from rivers, streams, or ponds may present the only
sources of water. In this case, the water may appear unclear and have an
unpleasant taste, but more importantly it could be a source of disease.
Even clear and apparently fresh water may be polluted with disease-causing
pathogens...
This filter system is especially
designed to micro-filter a supply of safe drinking water from cisterns,
ponds, streams, and other sources of questionable water. These very
reliable filters are manufactured of high grade, polished stainless steel
for maximum corrosion resistance, and are hygienic, durable, and easy to
clean.
British Berkefeld water filters
are also compact, portable, and simple to operate. Requiring no external
plumbing, each filter takes only minutes to assemble and can provide up to
24 gallons or more of safe drinking water each day. The high-tech
silver-impregnated ceramic elements feature a nominal filtration
efficiency of : 0.2 microns >98%, at 0.5 microns >99.9%, and at 0.9
microns > 99.99% which effectively blocks waterborne pathogens and
clarifies the water.
These filters are in common
everyday use in households across the country, and are particularly
effective on private well systems.
The replacement filter elements
have an activated carbon core and are designed to remove undesirable
tastes, odors, and many organic chemicals.
The ease of operation combined
with a proven effectiveness at eliminating water-borne diseases such as
cholera and typhoid has led to the British Berkefeld Filter being the
preferred unit for field operations by many of the world's major aid and
emergency relief organizations.
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Produces safe drinking water
from lakes, cisterns, streams, etc.
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Reliable design uses gravity
— no pumps to wear out
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Long lasting filter elements
will filter up to 60,000 gallons (using four elements),
depending on turbidity level of the water being filtered and proper
care of the filter elements
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Stainless steel construction
— sanitary, easy to clean, and will last longer than plastic
containers
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Independently tested by
Spectrum Labs, University of Arizona, Clare Microbiological,
Loughborough University, and Hyder.
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A rigorous program of
independent testing of our British Berkefeld water filters ensures
complete verification of all product performance claims.
What the filter will remove
Absolute filtration efficiency
to 0.5 microns (U.S.)
For particles 0.2 microns,
efficiency is greater than 98%;from 0.3 to 0.5 microns, filtration
efficiency is greater than 99%
Independently tested to remove
the following parasites and pathogenic bacteria:
*(University of
Arizona-Sterling)
How the filter works
The special ceramic elements are
manufactured specifically for use in this gravity filter. British
Berkefeld ceramic elements consist of a fine microporous structure, which
forms a complete barrier to all particles larger than 0.5 microns in size
(1 Micron= 1/1,000th of a millimeter). All particles above this size
become trapped on the surface and within the ceramic material. Fine
particles of silver are evenly dispersed within the structure of the
filter element, which prevents the growth of bacteria (mitosis) within the
ceramic wall. The British Berkefeld elements also contain an additional
activated carbon filling, which removes chemical and organic compounds
from the water and improves its taste and odor.
After passing through the filter
elements, safe, filtered water then collects in the lower chamber to be
drawn off from a tap. The structure of the ceramic material is designed to
be cleanable, and regular cleaning of the element will allow its
filtration efficiency to become regenerated. The elements may be cleaned
over 100 times before replacement becomes necessary.
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Our high-quality British
Berkefeld gravity water filter offers these advantages and
convenience:
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Reliable design utilizes
gravity for operation.
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No critical moving parts to
wear out
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Long-lasting replacement
cartridges will filter thousands of gallons each and are easily
replaced
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Used by missionaries, the
Red Cross, and other humanitarian relief agencies worldwide
This product is manufactured to
meet:
National Sanitation Foundation
(NSF) Standard 42 (ceramic shell)
National Sanitation Foundation (NSF) Standard 53 (ceramic shell)
ISO 9002 Quality Standard
Water Research council (WRc) Performance Standards
Filtration efficiency is 0.5 micron absolute by American Standards
Other product features:
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Ceramic elements may be
cleaned up to 100 times or more with a soft brush or Scotchbrite pad
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Product is
silver-impregnated and will not permit bacteria grow-through (mitosis)
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Silver-impregnated elements
provide a hostile environment for all microbiological organisms and
will not support their growth
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Each complete unit includes
four silver-impregnated ceramic filter elements
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Additional replacement
elements are available
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