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

The SaWa Can purification technique is based on the Solar Water Disinfection (SODIS) process by PET bottles, which has been endorsed by the World Health Organisation as a safe way to purify water. This technique utilizes UVA and UVB rays, as well as heat from the sun to purify water.
The combination of these three processes effectively kills the organic pathogens present in water. 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, while the heat initiates a pasteurization process that works with the UV processes to accelerate the disinfection process as a whole.

How does the SaWa Can work?

  • Lay the SaWa Can in direct sunlight for at least 4 hours.
  • SaWa Can cannot purify water with a turbidity higher than 30 NTU.
  • Restart the process if it rains or if heavy clouds appear.
  • After the purification process, store the SaWa Can indoors.
  • SaWa Can is intended for purifying drinking water only. Use the purified water within three days.
  • Clean the SaWa Can regularly by washing it with water only.
  • Do not use any soap or detergent. Stop using the SaWa Can and seek help from a local agent if the plastic changes colour or breaks.

SaWa’s Construction

 

 

 

The SaWa Can is designed to hold 6 litres of water. The can ensures a rigid product and optimal solar exposure when filled with water. Weighing only 300g, the SaWa Can is easy to transport and store. Its closed ecosystem storage prevents the cleaned, safe drinking water from becoming recontaminated.

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