Household Water Treatment and Safe Storage Factsheet: Source ...
Household Water Treatment and Safe Storage Factsheet: Source ...
Household Water Treatment and Safe Storage Factsheet: Source ...
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<strong>Household</strong> <strong>Water</strong> <strong>Treatment</strong> <strong>and</strong> <strong>Safe</strong> <strong>Storage</strong><br />
Product Sheet: LifeStraw ® Family<br />
Approximate Dimensions:<br />
Approximate Weight:<br />
Output:<br />
Cost:<br />
Maintenance:<br />
Upper container capacity: 2 litres<br />
Plastic hose length: 1 metre<br />
Not available<br />
Average 9 to 10 litres/hour<br />
US$25-40; only available in large orders<br />
Pre-filter should be cleaned daily. Remove pre-filter from<br />
container, wash <strong>and</strong> replace.<br />
<strong>Treatment</strong> Efficiency<br />
Purification cartridge should be<br />
cleaned daily. Follow<br />
instructions provided to clean<br />
the cartridge by squeezing the<br />
red bulb, waiting 30 seconds,<br />
<strong>and</strong> repeating twice. Open the<br />
red valve <strong>and</strong> allow water to<br />
flow out of the red outlet for 30<br />
seconds.<br />
Squeezing the bulb for backwash<br />
(Credit: Vestergaard-Fr<strong>and</strong>sen)<br />
Bacteria Viruses Protozoa Helminths Turbidity Chemicals<br />
Laboratory >99.9999% 1,2 99.99% 1,2 >99.9% 1,2 100% 3 N/A 4 0 2<br />
Field* N/A N/A N/A N/A N/A N/A<br />
N/A : Not available<br />
1 Clasen et al., 2009<br />
2 www.vestergaard-fr<strong>and</strong>sen.com/lifestraw/lifestraw/faq<br />
3 Due to the pore size (0.02 m), it would be expected that helminths will be removed<br />
4 Due to the pore size (0.02 m), turbidity removal is expected to be high. Extensive testing has shown it will make turbid<br />
water clear (www.vestergaard-fr<strong>and</strong>sen.com/lifestraw/lifestraw-family/faq).<br />
Lifestraw does not remove salt or chemicals such as arsenic, iron or fluoride.<br />
References<br />
Clasen, T. et al. (2009). Laboratory assessment of a gravity-fed ultrafiltration water treatment<br />
device designed for household use in low-income settings. Am. J. Trop. Med. Hyg., 80(5), 2009,<br />
pp. 819–823.<br />
Vestergaard-Fr<strong>and</strong>sen. (no date). Lifestraw ® . <strong>Safe</strong> drinking water interventions for home <strong>and</strong><br />
outside use. Verstergaard Fr<strong>and</strong>sen Group S.A., Switzerl<strong>and</strong>. Available at: www.lifestraw.com