For each LifeStraw ® product you purchase, one school child in a developing community is provided wih safe drinking water for an entire school year. Follow a day in the life of a Kenyan girl named Violet to see how. Visit LifeStraw® Follow the Liters where you can see the impact of consumer contributions.

Note: A PDF version of this document with information conveyed visually in table format is available (please note that the PDF is not accessible for screen readers; this HTML page contains the same information as that found within the PDF): A Guide to Drinking Water Treatment Technologies for Household Use - PDF [PDF - 1.26 mb].

Ammonia can be a big problem for fish and fish keepers alike. It can quickly kill delicate fish species or it can make for a slow, painful death for more hardy fish species. Ammonia and nitrites alike can be managed properly with the proper equipment and know-how.

When you find yourself an a survival situation, you do not always have access to chemicals or a filter to purify the water so you can drink it. You...

Scientists use many different instruments to determine the quality of water, including Secchi disks (measure water clarity), probes, nets, gauges and meters. Water quality is not just measured by direct sampling. Information can also be derived from aerial and satellite photographs by observing the surrounding environment and by collecting organisms that live in the body of water.