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Black Berkeys Receive New Testing Results

We are proud to announce brand new black berkey testing results that show the Berkey removes Chloramines, Pharmaceuticals, BPA, and much more from your water. This highly anticipated round of testing was just completed, and can be found here.

Berkey Lineup Photo

Black Berkey Testing Highlights:

1) Bisphenol-A - Removed to greater than 99.9%. Many customers had the desire to pour their bottled water into their berkey, and had wondered if the system would remove this endocrine disruptor.

2) Chloramines - Removed to greater than 99.9%. With many water municipalities switching to chloramine disinfection instead of chlorine, there was a growing chorus of existing and potential Berkey customers wanting the answer to this question.

3) Pharmaceuticals - Removed to greater than 99.5%. This has been a hot button also. Many studies and articles have come out over the past 5 years showing how these pharmaceuticals are washing down our toilets and not being removed from our water supply by the local municipal filtration plant. The filters were tested for 17 different types of pharmaceuticals and they were all removed. No additional types of pharmaceuticals were available for testing at this lab, however the results should be similar for others.

4) Petroleum Contaminants - Removed to greater than 99.9%. With the unfortunately too common event of oil spills and petroleum contamination of waterways and water sources, this has been on the mind of customers for some time, especially since the gulf oil spill.  The black berkeys would protect them from these contaminants.

5) Methylcycohexane-methane - Removed to greater than 99.9%. This was the contaminant that was involved in the March 2014 West Virginia oil spill.

6) Pesticides - Removed to greater than 99.9%. These had already been tested for before, however more pesticides were included in this round of testing.

7) Heavy Metals - Removed to greater than 99.1%. These had already been tested for before, however a couple more heavy metals were included in this round of testing.

8) Coliform and e-Coli - Removed to greater than 99.9%. These had already been tested for before and shown to be removed to over 99.9999%.  This could be considered as confirmation testing.

Some additional testing notes:

NMCL set the limit of 99.9% or Log 3 reduction with the lab before testing began. Each Log level (percent) reduction costs significantly more for testing and is typically not needed.  It boils down to a function of cost vs what levels they believed would be acceptable to customers & dealers. Log 3 (99.9%) reduction is significant and the testing costs are reasonable; that's why they settled on this level.

You will notice in the test results that most all of the contaminates measured after running through the Black Berkey element, show "less than" as the measured contaminate level left in the water. This means that the actual reduction levels are "greater than" 99.9% - exceeding the target reduction level tested for.

90 thoughts on “Black Berkeys Receive New Testing Results”

  • Jari Brenner

    What about flouride? I have a small RV and would like to know how to filter the various water supplies that I am exposed to. I've seen filters tat attach to the hose where the water enters the RV. Do you make those?

    Reply
  • Kathleen

    What independent lab did this testing for you? You don't list it on the results page, which raises suspicions that these have not been independently verified. I would like to believe these results before I purchase.

    Reply
  • Rich

    Is there a configuration of filter for shower heads that removes Chloramines? Perhaps one that uses the black berkey filter? (My tap water doesn't have chlorine, as they've switchd to Chloramines here.)

    Thanks,
    Rich

    Reply
  • Mae

    Hi,
    I'm curious to know if you have tested for phthalates? Do your filters have phthalates in them?
    Many thanks!

    Reply
  • nancy

    I have a British Berkefeld with white ceramic filters can I replace the ceramic filters with black ones?

    Thanks for response

    Reply
  • Nonie

    Hi Dan,

    Can the Berkey Lite use 4 fluoride filters? And what is the percentage filtered out? No mention on Natural News report about fluoride. I live in California, so the Lite is what I will be getting.

    Thanks!
    Nonie

    Reply
    • Dan DeBaun

      Hi Nonie -

      Yes, the BL can use 4 fluoride filters. The filters can remove up to 99.75%, however the chemistry nature of the media is dependent on source water PH, so the percentage removal varies. The lower the PH of your source water, the more efficient the media is and higher the removal rate. Optimal is 5-7 PH. The higher the PH, the lower the removal rates are.

      Thanks
      Dan

      Reply
  • Jeff

    Dan,

    Does the Berkey remove good minerals in the water?

    Thanks,

    Jeff

    Reply
  • Linwood Lebell

    How does the Berkey know to leave the good minerals in the water while getting the bad stuff out?

    Reply
  • Susan

    Hi there,

    Have you tested for the removal of estrogen? This is a significant concern in our water supply.

    If so, please direct me to, or supplied the test results.

    Cheers,
    Interested purchaser.

    Reply
    • Dan DeBaun

      Hi Susan -

      The latest detailed testing can be found here: http://www.bigberkeywaterfilters.com/chloramine-pharmaceutical-pesticide-etc-results/ There is one hormone tested here but not estrogen in particular.

      Thanks
      Dan

      Reply
  • Cindy

    I was about to order a Berkey Water Filter until I started reading about filter problems. The filters were coming apart from the base. Has this been resolved? If so, how?

    Thanks
    Cindy

    Reply
    • Dan DeBaun

      Hi Cindy -

      Yes, the black berkey filters issue you have read about happened with a batch that had a higher than average defective rate (3-6%), produced in November 2010. To prevent this from happening again, the manufacturer redesigned the filters so that they are machined on in addition to a new stronger glue, such that if the glue even were to fail, the machining still keeps them functioning as designed.

      Thanks
      Dan

      Reply
    • Dan DeBaun

      Hi Cindy -

      Yes, the black berkey filters issue you have read about happened with a batch that had a higher than average defective rate (3-6%), produced in November 2010. To prevent this from happening again, the manufacturer redesigned the filters so that they are machined on in addition to a new stronger glue, such that if the glue even were to fail, the machining still keeps them functioning as designed.

      Thanks
      Dan

      Reply
  • sean

    I'm curious why there hasn't been any testing for nitrates reduction? I'm one of many who is concerned about reducing nitrates in their water, and it seems like considering all the different things that berkey has gotten tested at labs for reduction levels, how hard would it be to include a nitrate lab test?

    Reply
  • Barbara

    Hello, Dan:

    Do the super sterasyl ceramic filters remove arsenic? I've heard about arsenic removal filters that fit in the lower chamber that holds the filtered water of the stainless steel unit.

    Are those arsenic removal filters safe? Thanks.

    Reply
  • Debbie Hoffman

    I purchased a Big Berkey with four Black Berkey filters in June of 2013. I have not yet used my filtration system and would like to know when the filters were redesigned and if my black filters would fall into that time frame?

    Thanks, Debbie

    Reply
  • Mel

    In an above comment it states that the black filters have glue and machining. I am very pleased with my Imperial but thought glue does not sound good. Is there such a product as safe glue? Also can the stainless spigot (vs.the plastic spigots) be used with the glass viewing attachment on the Imperial? I did not see where you offered the stainless spigot for sale on your site. Thank you. Mel

    Reply
    • Dan DeBaun

      Hi Mel -

      It's a food grade glue, and the glue is helping fasten them media candle to the base. There is no glue on the inside of the filter, so the filtered water is not sitting in contact with the glue after it passes through the filtration process. Currently there is not stainless sight glass solution that fits together and works. We do not offer the stainless spigot on the site because it is not approved by the manufacturer due to rusting problems.

      Thanks
      Dan

      Reply
  • Diana

    I just assembled my new Berkey with black filters plus the fluoride filters in the bottom tank. My question is whether it's alright for the bottom tank to be filled to the point that the water stays in contact with the fluoride filter. My Berkey is not very big and the fluoride filters take up most of the bottom reservoir so if the water level is supposed to sit below the filters it severely restricts the volume of water we have available.

    Reply
  • Taylor

    I live in Toledo, Oh and last year our city had a water crisis for three days due to the microcystins (by product of algae). Bottled water had to be shipped in. I am thinking about purchasing a Berkey and was wondering if the two black berkey filters would be able to filter this out. Can you please advise...

    Reply
    • Dan DeBaun

      Hi Taylor -

      Yes, it should. Here's the official comments from the manufacturer:

      http://www.bigberkeywaterfilters.com/blog/category/microcystin

      Thanks
      Dan

      Reply
  • Youel Altizer

    Does the Berkey Filter out sodium.

    Reply
  • Eric

    Regarding the PF-2 and BigBerkey filters (I have the BerkeyLite), do the BB's filter out fluorides as well as arsenic compared with the PF-2 ones. Do you recommend these two type of filters (using two BB's in mine)? Than you Eric

    Reply
  • Marianne

    Hi, we have well water that is high in minerals. My son who is 17 just had a kidney stone and we have no idea if it's related to our water. We always have only used water from our faucet with a pur filter,the PUR Mineral filter. I was wanting to try out the Berkey filter, but read that it leaves all the mineral content in the water. So to clarify.....if my water is high in calcium, the Berkey leaves ALL the calcium that's there? I am looking for something to balance the moineral content.
    Thanks very much,
    Marianne

    Reply
  • Jake

    Hello im curious, what levels do you expect water ph to come out at after being filtered with a Berkeley? Is there any way to adjust. I've also seen on sites that berkeys ppm's are not much better than municipal tap.. I dont know a ton on the subject so maybe you could give me some info :) Looking forward to buying my first water filter!

    Reply
    • Dan DeBaun

      Hi Jake -

      The PH will be dependent on the source water PH. The berkey filters do not add anything to the water to increase the PH, they only remove acidic components that can result in a PH increase. With that being said, we cannot provide a estimated PH number for your end result filtered water. Most customers see a rise, but there is no guarantee. As for PPM's, the berkey does not remove beneficial minerals from the water, so this is why there will only be a major difference in TDS readings if the water has heavy metals in it. The berkeys would remove these, and lower the TDS ppm readings as a result.

      Let me know if you have any other questions.

      Thanks
      Dan

      Reply
  • Sue C

    Does the Big Berkey remove nitrates? Thank you.

    Reply
  • michele

    I presently use a PUR faucet filter. With all the talk about emp disasters, I wonder which Berkey filter I need for a situation in which there are no utilities, including running water. I live in an urban apartment with my 3 cats. Will your Berkeys filter seawater? Dirty brook water? Scummy pond water? Please advise. Thank you.

    Reply
  • Erin

    Hi,
    I am interested in the Berkey filter system. Looking at the numbers for heavy metals (99.1) I am a little concerned though. I currently drink water with no detectable amounts of metals, but it is cumbersome to buy. If one were to put the water through the filtration system a second time, would the water be even purer the second time?
    Thanks,
    Erin

    Reply
    • Dan DeBaun

      Hi Erin -

      Yes, it would remove above another 99.1%. Also, please note most of the heavy metals were removed to more than 99.9%. Details here:

      http://www.bigberkeywaterfilters.com/chloramine-pharmaceutical-pesticide-etc-results/

      Thanks
      Dan

      Reply
  • Ava

    Hi Dan,
    I found a website that said that Berkey filters remove hormone disruptors such as oestrogen and progesterone. Can you tell me anything about the levels of these it removes. The site said that reverse osmosis and ionisers do not remove these as the particles are too small.
    Thank you.
    Oh and I am in the UK, do you sell outside the US and if not who would you recommend I buy from?
    Best,
    Ava

    Reply
  • Tamara

    I also would like to know if Berkey will filter other water like lake/pond/stream water, and not just tap water?
    Or maybe its not recommended to put "dirty" water in it?
    Please reply,
    Thank you!

    Reply
    • Dan DeBaun

      Hi Tamara -

      This filter was actually originally designed for filtering lake/pond/stream water, so this would be fine for filtering with the Berkey.

      Thanks
      Dan

      Reply
  • Steve McArthur
    Steve McArthur June 19, 2015 at 5:45 pm

    What keeps bacteria from growing on the black filters if they are always wet or damp?

    Reply
    • Dan DeBaun

      Hi Steve -

      One of the ingredients used in the filters is a self sterilizing media that prevents any bacterial growth, so it would still be preventing growth whether it being wet or dry.

      Thanks
      Dan

      Reply
  • Lee

    I bought the propur big, and I am not very satisfied with it. Which Berkey filters will work in this unit?

    Reply
  • Lynne

    I have a well and a Berkey Lite running 4 BB's. Sometimes the water is pretty good from the well and sometimes not so much. I try to hold off filtering anything too grungy until it clears up, but, I sometimes must run some less than optimal water through there. I sometimes run 5-6 gals/day through and clean when things slow down or the filters start looking a little gray at the bottom. Can you give me an estimated filter life from these data? The 5-6 gals/day is generally not that often, but it occasionally does happen after a long stretch of cloudy water when I run out of stored filtered water. We are known to have uranium in our local water supply - we do not glow in the dark, however, so the black Berkeys must still be working after 2 years.
    Thanks for any input.
    Lynne

    Reply
    • Dan DeBaun

      Hi Lynne -

      We would still stick with the 6000 gallons per set of 2 for these. Also, if you are continually taxing the filters, we would recommend running a red food coloring test everything few months to keep tabs on their effectiveness.

      Thanks
      Dan

      Reply
  • Amy

    Hi, I am wondering if Campylobacter, Cryptosporidium, and Giardia are filtered? If this has been addressed before or if it is in the test results, I apologize. I overlooked it if so. Thank you for your time :)

    Reply
    • Dan DeBaun

      Hi Amy -

      We have testing for Cryptosporidium and Giardia and they are removed to over 99.9999%, but has been no testing for Campylobacter as of yet.

      Thanks
      Dan

      Reply
  • Barbara

    Does the Big Berkey filter seawater?
    Does the shower head filter all the same contaminants as the black filters, including uranium and radon?

    Reply
    • Dan DeBaun

      Hi Barbara -

      No, the berkeys do not remove salt from the water. The shower filters use a different media than the black berkeys do, thus remove a different contaminant profile; chlorine primarily. More details on what the shower filters remove can be found here:

      http://www.bigberkeywaterfilters.com/shower-head-filter.html

      Thanks
      Dan

      Reply
  • Rosan

    We have a high level of radium and uranium in our well water... How well does the Berkley filter these? What should I purchase.. I am thinking about purchasing a couple systems.... Thanks

    Reply
    • Dan DeBaun

      Hi Rosan -

      The filters have not been tested for these. A list of what the filters have been tested for can be found here:

      http://www.bigberkeywaterfilters.com/black-berkey-filters-2.html

      Thanks
      Dan

      Reply
  • VJ

    Can you please advise if any of the filters use animal based materials such as bone-char, activated charcoal made from bones.

    Thank you,
    VJ

    Reply
  • Jacee

    In an emergency, can the BB filter spa or swimming pool water and make it safe to drink?

    Reply
    • Dan DeBaun

      Hi Jacee -

      Since chlorine is the only contaminant in pool water that we know the filters can remove, we can state that it will remove this chemical. If the concentrations are very high, one may need to run the water through the filter more than once to remove it completely. However, as there are many times other chemicals used in pool water, we cannot comment as to the removal effectiveness of these other chemicals, and thus cannot state that we would recommend pool water a source water in case of emergency.

      Thanks
      Dan

      Reply
  • Matthew

    Hello i have been looking for a filter to prepare my city water for culter as far as water kekir .i have searched many systems all having down sides then i found this but still cant find much from the bacterial world saying this would or wouldnt work best for the money .i can say in my town in nj we have the highest allowable clorimed and fluoride level in our tap witch kills the culture's thanks for any info

    Reply
    • Dan DeBaun

      Hi Matthew -

      Yes, the filters remove bacteria to levels over 99.9999%. They also remove chlorine to undetectable levels. You would need the PF-2 fluoride filter add-ons if you wanted to remove fluoride also.

      Thanks
      Dan

      Reply
  • Robert

    Hello. Does the Berkey remove perchlorate from water?

    Thanks,
    Robert

    Reply
  • Ashley

    I read that the flouride filters work best/only work if the PH is between 5-7. If the black filters in the Berkey end up raising the PH of the water above 7 after filtering, will the fluoride filters then not work? I live in IL where they fluoridate the water and I'm looking to see a reduction, but don't want to waste money if my PH is above 7 and they won't work.

    Thanks!

    Reply
  • kam.sreeram

    water do not come out even when the top tank is full what should i do?

    Reply
    • Dan DeBaun

      Hi Kam -

      It sounds like your filters are clogged. Please clean them as mentioned here:

      http://www.bigberkeywaterfilters.com/blog/berkey-water-filter/anns-helpful-hints-for-berkey-water-filter-systems

      Thanks
      Dan

      Reply
  • Justin

    I'm looking at your test results and I don't see a capacity listed for the removal of the contaminants. How long were the filters tested for? If the filter takes out 99.9% of all contaminants in the first gallon, what happens in the 100th gallon, or 500th gallon? What capacity should I expect the berkey filters to last?

    Thank you.

    Reply
  • lorie

    thank you for the info about the chloramines. That was probably the most important information you could have given all of your loyal customers.

    Reply
  • O

    hi i am thinking of purchasing a berkey, i read on a review that the only con on the berkey is that it does not remove all endocrine disruptors. is this true? does berkey romove some/most endocrine disruptors or does it remove all endocrine disruptors. please also direct me to a some form of proof.
    thank you.

    Reply
    • Dan DeBaun

      Hi O -

      We can only speak to what the filters have been tested for. The endocrine disruptors listed on the black berkey filter page have been tested for and it shows their removal rates. Any other chemicals you do not see listed, simply have not been tested for, so we cannot make a claim on a removal rate.

      Thanks
      Dan

      Reply
  • Denise merullo
    Denise merullo June 10, 2016 at 7:39 pm

    Hi , will the pf2 filters filter out mercury? In an emergency the ponds around us are known to have mercury ( cant eat the fish) . Was hoping this could filter it out so we could use the pond water.

    Reply
  • Allen C

    Hi Dan, in response to a question, you stated the following on June 20, 2015: "One of the ingredients used in the filters is a self sterilizing media that prevents any bacterial growth, so it would still be preventing growth whether it being wet or dry." Is this self-sterilizing media the silver nanoparticles I read are part of the filter? If so, have tests been performed to confirm the nanoparticles do not get released into the filtered water? Thank you.

    Reply
    • Dan DeBaun

      Hi Allen -

      The formula is proprietary so cannot state what the filters use for self sterilization. We can tell you that the filters do no add anything to the filtered water.

      Thanks
      Dan

      Reply
  • David

    I'm on #15 refill and the water goes in at 98 ppm and comes out at 92 ppm. I'm also seeing a residue on top of filtered water. I have 2 black filters and 2 fluoride filters. Any tips?

    Reply
    • Dan DeBaun

      Hi David -

      The residue could be the final wash out. The TDS measures minerals and heavy metals, and since the berkey does not remove minerals, many times the TDS remains unchanged pre vs post filtration, or just slightly lower representing the removal of some heavy metals in the water.

      Thanks
      Dan

      Reply
  • Sarah

    Just wondering if there has been any further testing on estrogen and the filters. Thanks!
    Sarah

    Reply
    • Dan DeBaun

      Hi Sarah -

      We've recently has the filters subjected to new testing for radiation and perfluorochemical removal, however no additional testing on estrogen.

      Thanks
      Dan

      Reply
  • John Clancy

    Hi. You state that the berkey filters do not filter beneficial minerals due to the construction materials. Could you elaborate on that? I'm wary because I have never seen a test result that shows the beneficial minerals in water filtered by a berkey. Also, aren't beneficial minerals, at least in part, larger than a lot of the stuff that berkey filters? I want your answer to give me some confidence as I serve my children water that has been filtered by your product. Thanks.

    Reply
    • Dan DeBaun

      Hi John -

      It's not a matter of contaminant size, but rather the actual filter ingredients that are used. The ingredients that make up the black berkey filters do not have an affinity to attract or bind to beneficial minerals, so this is why they pass through. Using a TDS meter will give you a high level number for this mineral count.

      Thanks
      Dan

      Reply
  • Ftank

    You didn't answer the question concerning effectiveness of the filters example:1st gallon - 100 gal to 500 gallons filtered. Are the percentages steady in amounts removed, if not what are the increases.
    This would be helpful information, so as to know weather to Refilter the water at different stages of use.
    To get the desired effectiveness from your product.
    Thank You !

    Reply
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