Excellent product, each package is equivalent to 100 liters of water that you can clean. It includes detailed instructions on the amount of time the tablets should stay depending on the level of cleaning you want to achieve.

Get as much as you can, they may run out nationwide! Very small packaging. If you have dirty water, take a large bowl, put a good double espresso coffee filter that holds sediment, etc., pour the water and if there is the possibility, first boil it on high heat for half an hour to reach about 100 degrees. After it cools down after an hour, pour 1 tablet per liter and let it work for half an hour. Better alternative to tablets but more expensive, the straw (sawyer, such brands). Also get one as a backup. Useful product.