SaWa Can

SaWa Can's Usability and Efficacy

SaWa Can is our latest water purification and storage product for households. It is an improvement on the widely used Jerry Can water storage solution in low-income communities. We have created a durable and affordable option for members of low-income communities who are short on time and resources.

The product has a larger water storage capacity of 6 liters and a longer lifespan due to its sturdy design. It is made locally to reduce carbon emissions in the supply chain.

SaWa Can is the world’s first water storage and purification solution with a handle for hanging and a tap for easy dispensing. This reduces the risk of misuse and recontamination.

SaWa’s Technology increases UV Penetration

SaWa Can purification technique is based on the 40 year old Solar Water Disinfection (SODIS) process by PET bottles, which has been endorsed by the World Health Organisation as a safe way to purify water. It works by harnessing UVA and UVB rays as well as heat from the sun.

The combination of these three processes kill the organic pathogens of concern present in water. More specifically, the UVA forms reactive oxygen species (ROS) in the water which play a critical role in inactivating the microorganisms. UVB directly damages the organism’s DNA and RNA. The heat initiates a heat pasteurization that works with the UV processes to accelerate the entire disinfection process.

How does the SaWa Can work?

  1. Lay the SaWa Can in direct sunlight for a minimum of 4 hours.
  2. SaWa Can does not purify water that is higher than 30NTU in turbidity, use the turbidity check when in doubt.
  3. Restart the process if it rains or heavy clouds appear. After purification process, store the SaWa Can indoors.
  4. SaWa Can should be used for the purpose of purifying drinking water only. Use the purified water within three days.
  5. Clean the SaWa Can regularly by washing it with water only. Do not add any soap or detergent. Stop using the SaWa Can and seek help from local agent if the plastic changes colour or breaks.

SaWa’s Construction



SaWa Can is constructed to hold 6 litres of water. Filled with water, the Can will ensure a rigid product and optimal solar exposure. SaWa Can weighs 100g, making it easy to transport and store. SaWa Can’s closed eco-system storage prevents the cleaned, safe drinking water from becoming recontaminated.

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