* Clean even the dirtiest water—anywhere
* Removes 99.9% of bacteria, like giardia and salmonella
* Amazon Choice product reviewed by nearly 300 customers
Having clean water when traveling abroad or backpacking off-the-grid is not always an option, which is why there are products out there that have found clever ways to clean water while exploring the wild outdoors, like the emergency water filter straw that lets you drink straight from the source or the Brita filter integrated water bottle for clean sipping anywhere. But we discovered a great solution to filtering dirty river or lake water while traveling that can satiate the thirst of your whole group of friends and family. The Platypus GravityWorks Water Filtration Kit uses the natural force of gravity to pull dirty water through its fibrous microfilter, resulting in drinkable water. It is said to remove 99.9% of bacteria that includes giardia, E. coli, salmonella and cholera—all potential infection-causing bacteria. Not only that but it has been rated 5-stars by 85% of the Amazon customers who tried it, deeming it an Amazon Choice for its high-quality and fair price.
To use the portable system, simply hook up the dirty water-filled bag to a tree or something high enough to drain the water below to the second bag that will house the filtered water. Their filter is made from hundreds of hollow fibers all bundled together into one sleek filter (see below) and is said to have up to 18 times more surface area than traditional filters. When the water flows through it the impurities are left inside and clean water is then collected in the second bag. In 2.5 minutes, you will have four liters of drinkable water for cooking and cleaning. The system produces a flow rate of 1.75 liters per minute and the whole kit only weighs 11.6 ounces (under one pound). Keep in mind the filter should be replaced after filtering 1,500 gallons to ensure it is working effectively and thoroughly. The entire kit comes complete with two water bags, a hollow-fiber microfilter, hoses, shutoff clamp, and a storage bag to easily pack up the kit and stick it into a backpack or suitcase for travel.