How to use our products

Start by adding exactly 20 liters of raw, untreated water into a clean bucket. Accurate measurement is vital because each sachet is precisely formulated to treat this specific volume, ensuring the correct concentration of active ingredients for both clarification and disinfection.

Carefully open the Bishan Gari sachet and pour the entire contents into the bucket of water. This single sachet contains a scientifically balanced mixture of a chlorine disinfectant (calcium hypochlorite) to kill pathogens and a coagulant to remove physical impurities.

Stir the water rapidly with a clean stick for 2 minutes to ensure the powder is fully dissolved and distributed. Follow this with 3 to 5 minutes of slow stirring. This two-stage process—known as coagulation and flocculation—allows the active ingredients to bind with dirt, bacteria, and viruses, forming heavy particles called “flocs”.

Allow the water to sit undisturbed for at least 30 minutes. During this time, the flocs settle to the bottom of the bucket, and the disinfectant has sufficient contact time to eliminate 99.9999% of harmful microbes. Remember: a longer detention time often results in even clearer water.

Carefully strain the clear top layer of water through a clean, thick cotton cloth into a dedicated safe water storage container. Once finished, be sure to bury the settled sludge (the “flocs”) in the ground to prevent any concentrated contaminants from returning to the environment.

The treated water is now microbiologically safe and ready for your family to drink. To maintain its purity, always store the treated water in a clean, covered container to prevent re-contamination from hands or insects.