The Solution

One SolarSack can purify 4 liters of water in 4 hours

Removes 99.9%
of Viruses

Removes 99.99%
of Bacteria

Global & Local Certifications

The SolarSack is CE marked and conforms with the provisions of the Machinery Directive 2006/42/EC under EEA legislation. More info on CE marking can be found here.
 

We have achieved certification and authorization by local governments in Uganda, Ghana, Rwanda, Kenya and Nigeria, where the SolarSack’s performance efficacy has been tested by government-approved qualified reference laboratories.

 

Key Features

Sun

The SODIS process removes harmful pathogens by harnessing UV-rays and heat from the sun. UVA forms Reactive Oxygen Species in the water that play a critical role in deactivating the microorganisms. UVB directly damages the organism’s DNA and RNA.

Heat

The heat initiates the pasteurisation process alongside the UV-rays to accelerate the disinfection process. This additional stage removes harmful microorganisms.​

Human-first Methodology​

SolarSack’s innovation lies in its human-centered product design using a bottom-up approach. This approach ensures constant feedback  during the design and production process to ensure it is widely adopted by the users in context. The solution is economically sustainable and creates jobs in distribution and welfare while reducing the dependency on fossil fuels.

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 more than 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 a unique design of the product 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 the SolarSack container using the SODIS method.

The water is safe to drink when it has been exposed to direct sunlight for 4 full hours. Restart the process if it starts to rain or heavy clouds appear before the 4 hours of treatment in full sun are complete.

Tests show that SolarSack can last for up to 1 year and will approximately provide 2000 liters of clean water throughout its lifetime. Take care of the SolarSack by avoiding sharp objects and folding.

SolarSack has proven to inactivate over 99.99% bacteria, among others fecal coliforms and the pathogenic bacterium enterotoxigenic E. coli (ETEC), and over 99.9% viruses. The SODIS method is generally known for removing pathogens of all microbial classes; bacteria, viruses and protozoa.

No. SolarSack cannot clean water that has been polluted with chemicals. 

No. SolarSack uses EU food-grade plastic standards, which is DEHP-free, BPA-free, and Phthalate-free 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.

SolarSack can treat visibly clear water. It is not recommended to treat water with more than 30 NTU of turbidity with the SolarSack. Turbidity means the cloudiness or dirtiness of the water. For higher turbidites, the water must be filtered before being treated with the SolarSack.

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

Yes! We aim to recycle all SolarSacks at the end of its use. We have set up local partnerships to develop a circular recycling ecosystem.

The SolarSack is CE marked and conforms with the provisions of the Machinery Directive 2006/42/EC under EEA legislation. In addition, SolarSack has achieved certification and authorization by local governments in Uganda, Ghana, Rwanda, Kenya and Nigeria, where the SolarSack’s performance efficacy has been tested by government-approved qualified reference laboratories to meet 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.

Our News

Our Lab

Putting SolarSack to the test, why it matters

My name is Charlotte Frydenlund Michelsen, and I’m the Senior Science Manager at SolarSack. … SolarSack 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

Read More
CSR partnership

SolarSack Our story

Going forward SolarSack is beginning a new chapter with a focus on CSR programmes, as another way to get SolarSack into the hands of our users.

Read More

Project guide

SolarSack has now Rebranded to
4Life Solutions