FAQs

If you have any further questions please send us a message using the button below or, head to our contact page to speak to our local agents.

Case Study: Kyangwali refugee settlement

We are always looking for committed partners that can help us expand the SolarSack solution to new countries. Please send us a message using the button below or, head to our team’s page to speak to a member of staff

SolarSacks work by harnessing UVA and UVB rays and heat from the sun. The combination of the three processes kills over 99,99 % of dangerous bacterial pathogens found in contaminated water. 

The SolarSack purification method is based on the 25-year-old Solar Water Disinfection (SODIS) method, endorsed by the WHO and UNICEF as a safe way to purify water. The SolarSack improves upon this method with the design of the product and by utilizing a plastic formulation that allows for the optimum spectrum of UV light to penetrate the water, where it effectively deactivates the dangerous pathogens.

The water is not filtered. It is purified in a SolarSack container using the SODIS method.

The water is safe to drink when it has been exposed to direct sunlight for 4 hours.

Tests show that the SolarSack can be reused approximately 500 times. This equals the total provision of 2000 litres of clean and safe water during its lifetime. 

The SolarSack has been proven to inactivate pathogenic bacteria such as enterotoxigenic E. coli (ETEC) and feacal coliform bacteria. In addition, the SODIS method has proven to inactivate all three microbial classes, bacteria, viruses and protozoa

No. SolarSack can not clean water that has been polluted with chemicals. 

SolarSack uses EU food-grade plastic standards and has been rigorously tested by various inspection and testing bodies such as SGS to ensure that the plastic does not pose any health risks.

It is not recommended to purify water with more than 30 NTU of turbidity with a SolarSack. For higher turbidites, the water must be filtered beforehand.

No. The taste is not affected by the treatment process. 

We have set up local partnerships to develop a circular recycling ecosystem.

SolarSack meets local standards and country-specific regulations. SolarSack’s certifications can be viewed here.

Please send us  a message using the button below or, head to our contact page to speak to our local agents

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My name is Charlotte Frydenlund Michelsen, and I’m the Senior Science Manager at 4Life Solutions… SaWa by 4Life can produce safe drinking water, showing over a 99.999% reduction of E. coli. Going forward we will be testing with turbidity levels of over 100 NTU

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