Amount of Water Treated
The Chulli Water-treatment system produces up to 90
litres of hot pasteurized water per day at the
household level, without any additional time or
Laboratory testing, along with over 400 field tests
on Chulli systems deployed in six pilot villages,
showed that the treatment completely inactivated
Ease of Use
The simple technology, occupying almost no extra
space in the household, fascinated people. Many
families were astonished by the large amount of
water produced and even complained that the system
produced more treated water than they could
This device may be built with off-the-shelf
parts available throughout most countries.
Large quantities of hot pasteurized water can
be obtained quickly.
Pasteurization does not improve chemical
quality, so surface water containing industrial
or chemical contamination should not be used for
the Chulli Water-treatment system.
Where groundwater is contaminated with arsenic (or
fluoride), the Chulli Water-treatment system may
provide a good alternative, if acceptable sources
of surface water are available. However, the Chulli
system has the potential for broader application.
Millions of people throughout the developing world
are using microbiological-contaminated
drinking-water, which could be made safe through
this flow through pasteurization process. The
Chulli technology present a new opportunity for
low-cost, effective treatment of water at the