Tulip Siphon Filter
Basic Water Needs
The Tulip® Siphon is a portable water purifier for daily or emergency use and is comprised of a silver enhanced ceramic candle filter (Tulip® or CrystalPur®) with a plastic casing and a siphon mechanism to initiate filtration.
Local partners in Ethiopia, Zambia, Ecuador and Guatemala. NGOs, commercial networks, national, regional and community entrepreneurs
Depending on location, around USD 20.00Interview with manufacturer
Household water treatment methods and products available in local market.
Ceramic candle filters are manufactured in China using diatomaceous earth, nano silver, and activated carbon. Production locations include China, India, and Kenya.
Patent publication number: WO 2009087670 A2
Basic Water Needs partners with local entrepreneurs, NGOs and other organizations to establish local distribution networks.
Including filter models in addition to the Siphon model, roughly 500,000 Tulip units have been distributedcorrespondence with manufacturer
How often/when should maintenance be performed?
Dimensions: 20.5 x 14 x 9 cm Weight: 0.5 kg
Provided by user: When flow rate slows, clean filter by backwashing by closing the tap and squeezing the rubber bulb, to force water back through the filter element. If sufficient flow rate is not restored, scrub filter with included scrub pad. Users should check filter diameter using the tool provided, and when diameter is less than indicated on the tool, the ceramic filter should be replaced.A washable pre-filter can be used when filtering turbid water to reduce clogging.
Replacement components are available through local agents or distributors.
7,000 liters or until diameter less than indicated.
Performance targets: Capable of removing 99.995% bacteria, >99.995% protozoa, and 99% turbidity. Flow rate is up to 5-Liters per hour.
Laboratory testing: Removal efficiency of Silver impregnated Ceramic filters
To preserve filtered water quality, use with a safe water storage container with lid and tap.
Examples include: Microbiological effectiveness of household water treatment technologies under field use conditions in rural Tanzania; What point-of-use water treatment products do consumers use? Evidence from a randomized controlled trial among the urban poor in Bangladesh; The Biosand Filter, Siphon Filter, and Rainwater Harvesting; Effects of Solids Loadings and Particle Size Distribution on Siphon Ceramic Candle Filters.
Laboratory and field evaluations (see above).
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