Using the HydraPak Flux is a breeze. First, find a water source like a stream or a lake. Open the spill - proof twist - cap and fill the bottle up. Then, close the cap and the built - in filter will start working as you drink. The high - flow nozzle can be quickly opened and closed with one hand, so you can stay hydrated on the go. When you're done with your drink, the bottle can be compressed down to pocket size or rolled up for easy storage. Just attach it to your pack using the flexible handle. As for maintenance, it's recommended to clean the bottle regularly. You can use mild soap and water to wash it. Make sure to let it dry completely before storing. Also, keep in mind that the filter has a lifespan of about 1,500 litres of water. Once you've reached that limit, it's time to replace the filter. And remember, the bottle can handle a wide range of temperatures, but don't expose it to extreme heat above 60°C.