Can you drink river water if boiled?

Never drink water from a natural source that you haven't purified, even if the water looks clean. Water in a stream, river or lake may look clean, but it can still be filled with bacteria, viruses, and parasites that can result in waterborne diseases, such as cryptosporidiosis or giardiasis.

nps.gov - Two Ways to Purify Water - National Park Service

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The final step of purification is disinfecting the water which can be done by either boiling or treating with a disinfectant. This is the most important step as these methods will kill any remaining organisms in the water, especially those that could make you sick.

Boiling:

Boiling is the best way to kill disease-causing organisms, including viruses, bacteria, and parasites. The high temperature and time spent boiling are very important to effectively kill the organisms in the water. Boiling will also effectively treat water if it is still cloudy or murky. If you’re at an elevation below 6,500 feet, put the water in a container over a heat source, such as a campfire or propane stove, and bring to a rolling boil for 1 minute. If you’re at an elevation over 6,500 feet, bring the water to a rolling boil for 3 minutes. Your water is now ready for drinking! You can make tea or coffee if you like it hot. Let it cool down first before you put it into your container.

Disinfection:

Disinfection happens when a chemical or UV light is added to water to kill bacteria, viruses, and other potentially harmful organisms. Many factors can impact the effectiveness of these methods including water temperature, pH, and cloudiness. With disinfectants, it is important to allow the chemical or UV light enough time to treat the water and kill the organisms before drinking – this is called contact time.

Chemical Disinfection

Chemical disinfection involves adding one or more chemicals to your filtered water that are effective at killing waterborne organisms. Chemical tablets or liquid drops are the most common ways to disinfect natural water. Iodine or chlorine dioxide are the most frequently used disinfection agents. National Sanitation Foundation (NSF) approved products are recommended Follow the manufacturer’s instruction for disinfecting the water. Contact time to disinfect the water varies by product (example: 30 minutes to 4 hours). If the water is cloudy or has floating debris, it will be more effective to pre-filter the water before disinfecting. WARNING: Do not use pool-cleaning tablets to disinfect drinking water! Pool-cleaning tablets are not intended to be consumed. WARNING: Consult with your physician before using any disinfection products. Some tablets or drops, especially iodine, may not be safe for pregnant women, people with thyroid issues or iodine hypersensitivities, or for user over long periods of time.

UV Light Purifiers

Visitors using UV purifiers to disinfect their water

Portable battery-operated UV purifiers can be used to reduce bacteria, viruses and protozoa in water from natural sources. However, these purifiers are only effective in disinfecting small quantities of clear water, are battery dependent and require correct contact time with the water.

To achieve maximum disinfection, make sure you:

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When was manna founded?

MANNA opened its doors in 1990 when seven members of the First Presbyterian Church of Philadelphia began delivering meals to their neighbors dying of AIDS.

mannapa.org - History - MANNA

MANNA opened its doors in 1990 when seven members of the First Presbyterian Church of Philadelphia began delivering meals to their neighbors dying of AIDS. During this time, people diagnosed with AIDS found themselves incredibly ill, isolated, and in need of hope. MANNA’s founders fulfilled this need with nourishment—giving love and community to those who needed it most. In the 32 years since our founding, MANNA has stayed true to its original mission of providing nourishment to our critically ill neighbors. As our knowledge of utilizing food as medicine deepened, our program evolved to include medically-tailored meals created in our in-house kitchen and professional nutrition counseling. After recognizing the widespread need for our services, MANNA began serving anyone at nutritional risk due to critical illness in 2006. Since then, MANNA has served clients with over 85 different illnesses. In 32 years, our program has improved the health and quality of life of more than 40,000 of our Philadelphia area neighbors with more than 19,000,000 medically nourishing meals.

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