Fill a SolarBag ® with 3.5 liters of fresh water from any source through its included pre-filter. Then place the SolarBag ® in direct sunlight or in any area open to the sky. The water is purified in 2-3 hours on a sunny day or 4-6 hours on a cloudy day or if the source water is tea-colored. An indicator tells you when the water is ready. A Pur-Blue process timer indicates that the purification process is complete. Drink the safe, purified water.
- It will not clog like a filter and no pumping or backwashing is needed.
- You can use it well over 500 times.
- It uses no chemicals so the water tastes great.