- 1.5 Gallons (5.7 Liters)7.5" x 19" (Includes lid and knob) tall$228.00
- 2.25 Gallons (8.5 Liters)8.5" x 21" (Includes lid and knob) tall$258.00
- 3.25 gallons (12.3 liters)9.5” x 24" (Includes lid and knob) tall$283.00
Regular Price: $61.00
Special Price $54.95
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Certified Independent Lab Tested
Remove Chlorine and Fluoride
About Big Berkey Water Filters
Top 3 ways a Berkey Water Filter will benefit your life
Drink To Your HealthRead more
Berkey water filter systems are far superior to other filtration systems because they remove harmful pathogenic bacteria, cysts, parasites, and unhealthy chemical contaminants such as Chlorine to levels higher than 99.99%, while at the same time leaving in the essential minerals your body needs.
Did you know that over 60% of US municipal water is fluoridated? Berkey water filter systems also distinguish themselves from many other filtration systems by having the capabilities to significantly reduce fluoride and arsenic via the "PF" line of filters.
Each durable Black Berkey Water filter will last up to 3000 gallons (6000 gallons per set of 2). This is much longer than the majority of water filter solutions on the market.
At 10 gallons per week, this equates to more than 11.5 years of healthy clean drinking water!
Including fluoride and arsenic reduction, 1 gallon of Berkey water costs just 7 cents!.
Stop and think how much money you could save by the simple reduction in bottled water purchases by regularly using water filtered by your Berkey water filter.
Berkey Water Filter systems are capable of purifying both treated water (municipal/city water) and untreated raw water from such sources as remote lakes, streams, stagnant ponds, and water supplies in foreign countries.
The micro-pores within the self-sterilizing and re-cleanable Black Berkey water filter purification elements are so small that pathogenic bacteria are simply not able to pass through them.
Due to the fact that the Berkey water filters do not require electricity and are portable, they become a lifesaver during times of flooding, loss of electricity, and other life threatening emergencies.
A message to our visitors
At BigBerkeyWaterFilters.com, we understand that choosing the right water filter for you and your family can be a daunting task. Made in the USA, Berkey Water Filters are the gold standard of gravity filtration, thanks to their long established reputation in the industry combined with their outstanding filtration test results. Please don`t hesitate to contact us if you have any questions about Berkey filtration, would like to learn more about our deals for bulk Berkey water filter purchases, or our discounts for charity organizations and missionaries.
Thanks, Dan DeBaun - Owner
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Strategies to Mitigate Environmental Damage Caused by Dams
Throughout the world, dams provide us with essential water supplies needed for drinking, crop irrigation, hydropower and industry. There are around 58,000 large dams, exceeding 15 meters in height, built on rivers around the world. Yet, while these dams provide us with water essential to our survival, and hydropower is seen as a green energy source, the construction of dams on our waterways comes at a significant cost to the environment. But managing rivers so that they meet both the needs of human society and that of aquatic ecosystems is a complex challenge. Communities need water as well as power, but building dams on rivers disrupts ecosystem functions and the services these ecosystems provide.A recent study conducted by researchers from Utah and Colorado State Universities at Glen Canyon Dam on the Colorado River provides some insight into how to best mitigate the negative impact that dams have on the environment, including proposing a new management method to reduce the impact of hydropeaking — a practice that is commonly used by hydropower dams, which has a negative impact on aquatic food webs further downstream. The researchers discuss their findings under the context of increasing global pressure to construct more dams, in a paper that was recently published in the scientific journal Science. "Dams change rivers by creating artificial lakes, fragmenting river networks and distorting natural patterns of sediment transport and seasonal variations in water temperature and stream flow," says co-author Jack Schmidt, a professor in the Department of Watershed Sciences at Utah State University, who served as chief of the U.S. Geological Survey's Grand Canyon Monitoring and Research Center from 2011 to 2014. Hydropeaking, is the practice commonly used by hydroelectric dams whereby river flows are increased during times of peak electricity demand by consumers. Aquatic insects, which form an essential part of river food webs, are particular vulnerable to the effects of hydropeaking. Insects lay their eggs on submerged aquatic vegetation near the shoreline, but drastic fluctuations in water levels can expose the eggs and/or larvae, causing them to dry out and die. "Hydropeaking creates a fluctuating daily pattern of water flows that can severely impair productive shoreline habitats through repeated wetting and drying. A conundrum for river scientists and managers is how to counter these negative effects in a cost-effective manner," says Schmidt. "Managers have to meet customer demand so total elimination of hydropeaking isn't an option. However, we assert that even small adjustments to river flow regimes might help to restore river ecosystems." The authors reviewed recent studies that focus on the impact of dams and dam operations on downstream ecosystems, which show how small changes in dam management can have a big positive impact further downstream. For example in a previous hydropeaking study looking at the impact on ecosystems further downstream, the authors suggest "giving aquatic insects the weekend off." Schmidt agrees; by giving insects a two day break from hydropeaking activities, may give them time to recover, which may allow a more natural aquatic food web to re-establish in the river, benefitting fish in the river ecosystem. While restoration efforts at existing hydroelectric dams is a good start to addressing the issue, the authors recommend that any new proposed dam project in South America, Asia and Africa should only go ahead after cautious planning and careful consideration is given to their design, location, overall number, and how the proposed new dam will be managed. While hydropower is considered a renewable source of energy, it is not always 'green' unless careful consideration is given to the location and operation of those dams to mitigate negative ecological effects. "In a world of growing demand for water and energy, we face an increasingly uncertain hydrological future," says Schmidt. "We have to balance economic gain against environmental degradation." Journal Reference N. LeRoy Poff & John C. Schmidt. How dams can go with the flow. Science; 09 Sep 2016: Vol. 353, Issue 6304, pp. 1099-1100. DOI: 10.1126/science.aah4926 Image SuggestionRead more
BPA can Reprogram the Brain, Changing Sexual Behavior of Turtles
BPA is an endocrine disrupting chemical that is used in a wide range of everyday items, including plastic water bottles, food cans and till slips. It is a harmful contaminant that has been associated with many health issues in both humans and wildlife that are exposed to it. BPA makes its way into the environment, and tends to accumulate in aquatic systems where it can negatively impact aquatic wildlife that live there. An earlier study conducted by scientists from the University of Missouri-Columbia on painted turtles revealed that BPA disrupts reproductive functioning and can feminize male turtles, causing them to develop female sex organs. In a more recent study, the researchers show how BPA not only physically feminizes male turtles, but it also reprograms the brain, making them exhibit behavioral patterns usually associated with female turtles. The scientists are concerned about the impact this could have on the population status of painted turtles, which could decline as a result.According to Cheryl Rosenfeld, an associate professor of biomedical sciences in the MU College of Veterinary Medicine and co-author of this study, the initial study showed that BPA and ethinyl estradiol (EE2), a hormone used in oral contraceptives, could reverse the sex of male turtles, changing them into females. "Painted turtles and other reptiles lack sex chromosomes," she explains. "The gender of painted turtles and other reptiles is determined by the incubation temperature of the egg during development. Studies have shown that exposure to endocrine-disrupting chemicals (EDCs), such as BPA, can override incubation temperature and switch the sex of males to females. In our latest study, we found that BPA also affects how the male brain is 'wired,' potentially inducing males to show female type behavioral patterns." For their study, the scientists exposed painted turtle eggs to BPA and ethinyl estradiol (EE2) in liquid form, then placed the eggs in an incubator set at a temperature that would typically result in male hatchlings. When the hatchlings were 5 months old the researchers tested their spacial navigation skills to ascertain whether exposure to these chemicals would have any impact on the navigational ability — more specifically, to determine whether their navigational skills would be in line with that expected of females who are better navigators than their male counterparts. The results of the navigational test showed male turtles that were exposed to these hormone disrupting chemicals while still in the egg exhibited better spatial navigational learning and memory skills than male turtles incubated under the same environmental conditions, but which did not get exposed to BPA and EE2 whilst developing in the egg. "While improved spatial navigation might be considered a good thing, it also may suggest that when they reach adulthood male turtles will not exhibit courtship behaviors needed to attract a mate and reproduce, which could result in dramatic population declines," explains Rosenfeld. According to Professor Rosenfeld, this study is the first to show how these harmful environmental contaminants not only change the physical sexual characteristics of turtles, but affects brain functioning as well. Turtles are considered an 'indicator species' as they can be used to determine the environmental health of the broader aquatic ecosystem. Gaining a clearer understanding of how these endocrine disrupting compounds affect the sexual behavior and orientation of turtles, may enable scientists to better understand the potential impacts of these chemicals on other animal species, including humans. The Berkey water filter, equipped with the black berkey filters, will filter out any BPA that may be in the water. Journal Reference Lindsey K. Manshack, Caroline M. Conard, Sarah A. Johnson, Jorden M. Alex, Sara J. Bryan, Sharon L. Deem, Dawn K. Holliday, Mark R. Ellersieck, Cheryl S. Rosenfeld. Effects of developmental exposure to bisphenol A and ethinyl estradiol on spatial navigational learning and memory in painted turtles (Chrysemys picta). Hormones and Behavior, 2016; 85: 48 DOI: 10.1016/j.yhbeh.2016.07.009 Images Suggestions: http://www.eurekalert.org/multimedia/pub/122465.php?from=336711 https://www.flickr.com/photos/usfwsnortheast/7888043218 Multimedia VIDEO: http://www.eurekalert.org/multimedia/pub/122466.phpRead more