(PF-2) FLUORIDE AND ARSENIC WATER FILTER
FLUORIDE:
Testing for fluoride was based on 20-30ppm of the ion in the influent aqueous solution at a flow rate of no more than 3 gpm (11 lpm) per cubic foot of media.
- PF-2 arsenic and fluoride water filtration results of < 1ppm of the fluoride ion in the effluent were typical for the media. >95% reduction
- Under optimum conditions, effluent concentrations of less than 50 ppb were readily achieved; >99.75% reduction
- Sodium fluoride, sodium fluorosilicate, and fluorosilicic acid (aka hydrofluorosilicic acid) all dissociate (breakdown) to fluoride, sodium, and silicate ions once added to water.
- This PF-2 media filters any type of inorganic fluoride salt ions that are added to the water.
- More Details on Fluoride/Arsenic Filter Testing and Media Specifications
ARSENIC:
This product uniquely targets the entire family of arsenic oxide anions as well as the arsenic cations.
REPLACEMENT:
Under normal conditions it is recommended that each set of two PF-2 elements be replaced after 1,000 gallons (3,785 liters) or every 2 years (whichever comes first). The Royal Berkey system is about 3.25 gallons (12.3 liters) therefore the PF-2 arsenic and fluoride water filters should be replaced after 1,000/3.25 (3,785/12.3) or 307 refills. If the system is refilled about one time per day, the PF-2's should be replaced after 10 months, if the system is refilled about twice per day, the PF-2's arsenic and fluoride water filters should be replaced about every five months). Actual capacity is dependent on the presence of other competing contaminants in the source water. High levels of fluoride, arsenic and heavy metals may reduce the capacity and efficiency of the elements.
PF-2 Filter NOTES:
- Do not boil this element.
- PF-2 arsenic and fluoride water filters reduce filtration flow rate by 15-20%.
- The media used in the PF-2 filter elements contains high-grade activated aluminum oxide, which currently is the most efficient media available for extracting fluoride from water. Below are the results we obtained when testing the PF-2 arsenic and fluoride water filters (the water was not pre-filtered through the Black Berkey elements). The reduction over time is due to additional residual process dust being washed free from the PF-2 arsenic and fluoride water filters as the system is used. To give a scale for comparison purposes we include test results from a national brand toothpaste and water boiled in an aluminum pan.
- National brand toothpaste 52.878 ppm aluminum
- Water boiled in an aluminum pan for five minutes: 2.791 ppm aluminum
- PF2 after conditioning (5 cycles): .178 ppm aluminum
- PF2 after 10 Cycles: .037 ppm aluminum
- PF2 after 20 Cycles: .029 ppm aluminum
While the above results indicate that the residual process dust adds a minute amount of aluminum to the water, the Black Berkey purification elements reduce aluminum from the water. We tested water that naturally contained .320ppm aluminum and filtered it through the combination of the Black Berkey and the post conditioned PF-2 arsenic and fluoride water filters (5 cycles). The results showed a net reduction in aluminum contamination (Raw influent: .320ppm - Effluent after passing through the Black Berkey and PF-2 arsenic and fluoride water filters: .232ppm). In other words, the Black Berkey elements removed more aluminum from the water than was added by the PF-2 arsenic and fluoride water filters. Big Berkey Water Filters homepage.
For more information on the topic of fluoride, read below:
- The Dangers of Fluoride, The Great Debate
- The Fluoride in Your Water Is Industrial Waste
- ADA recommends no fluoride in infant formula during their first 12 months.
- NSF Fact Sheet on Fluoridation and the Various Forms of Fluoride Additives
HOW ACTIVATED ALUMINA WORKS:
Activated Alumina is a granulated form of aluminum oxide. It is very porous and has a tremendous surface area for the removal of contaminants. In the removal process, the water containing arsenic and/or fluoride passes over the granules in the filter with the activated alumina adsorbing the arsenic and fluoride. The longer the water contact, the more the contaminants are removed.
Berkey Warranty
The manufacturer warrants this product to be free from defects in materials and workmanship for a period of 6 months from date of purchase. The manufacturer will replace or repair any product that it deems is not properly functioning during the stated warranty period.
BigBerkeyWaterFilters is always at your service to assist you with any warranty claims, send you replacement hardware free of charge if needed, or provide system maintenence support during the life of ownership.
Additional Information
| Weight | 2.0000 |
|---|---|
| Manufacturer | New Millennium Concepts, Ltd. |
| Chamber Location | Lower Chamber |
| Sold As | Set of 2 |
| Durability | 1000 Gallons or 2 Years (whichever comes first) |
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Poison!! Review by Stanford
Rating I just learned last year about sodium fluoride and why we shouldn't be drinking about it. I will never let my kids drink fluoride again now that I have my berkey with these fluoride filters! (Posted on 3/28/13)
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PF-2 Arsenic and Fluoride Water Filters are Great Review by rlongnt
Rating I feel so much better knowing that my children are not drinking anything but pure H2O. I had to laugh when my daughter complained about the nasty taste of what I considered to be the best bottled water on the market. (Posted on 9/25/12)
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Remove Fluoride! Review by Christi Julian
Rating I use these in my big berkey with the black berkeys and they seem to work well. I feel so much better knowing that I'm removing poisonous fluoride from my children's water. If you support this effort, visit fluoride.org for more information. They have a wealth of information. (Posted on 5/3/12)
Write Your Own Review
Questions on PF-2 Fluoride and Arsenic Water Filters (2)
- From Wanda at 8/28/12 1:15 PM
- I just installed these filters and the water is white and cloudy , I dumped 2 batches , but they have slowed down the filtering to just drops , is this normal because that is too slow for me !
- Hi Wanda -
The white cloudiness is the manufacturing dust washing away. After full priming of both filters (2 minutes of cold water from both sides of the filter), it can take up to 8 full system flushes for the cloudiness to fully dissipate. Some filters just have more dust than others. Please be sure to fill the system all the way to the top so that a full system flush gets pushed through them when going through this process.
Thanks
Dan - Do you find this question helpful? Yes No
- From P Campbell at 9/4/12 7:16 PM
- From Joe at 12/10/12 7:48 AM
- I Have two black filters in the upper chamber and I want to buy the fluoride filters for the lower chamber. however, I see no way in the lower chamber to connect the fluorite filters to the stainless steel container.
Please tell me how this works. - Hi Joe -
These screw onto the threaded black berkey stems that poke from the upper to the lower chamber. So, they actually hang off the black berkeys.
Thanks
Dan - Do you find this question helpful? Yes No
- I Have two black filters in the upper chamber and I want to buy the fluoride filters for the lower chamber. however, I see no way in the lower chamber to connect the fluorite filters to the stainless steel container.
- From Dan at 12/21/12 7:24 PM
- From Michael Wharton at 1/3/13 1:55 AM
- I have a well .I need advise on how to remove arsenic
The well serves three houses. - Hi Michael -
Any of the systems equipped with the PF-2's will filter arsenic. The black berkeys have also been now tested to reduce it, so both filters would help to reduce it to even higher levels.
Thanks
Dan - Do you find this question helpful? Yes No
- I have a well .I need advise on how to remove arsenic
- From Margaret Lengerich at 2/2/13 10:54 AM
- Hi,
The water from my well have a concentration of around 100 ppb of arsenic. Is Berkey able to reach 10 ppb of arsenic and how long does it take to filter it?
What kind of material do you use to filter?
Thank you. - Hi Margaret -
Both the black berkeys and the PF-2's will target arsenic, so getting removal rates this low should not be a problem. For example the latest black berkey tests took arsenic down from 200 ppb to below 2 ppb once filtered.
Thanks
Dan - Do you find this question helpful? Yes No
- Hi,
- From Deb at 2/4/13 10:57 PM
- Sorry I asked the second question before- I didn't get to that info on the site (about the ceramics and BBs having their own flouride filters. So, that quesiton is already answered.) But about the flouride filters, if starting out with a smaller amount as in city water, would it completely eliminate it, or get it at least below .7mg/liter? Is there a list on the site to see what contaminants are removed?
- Hi Deb -
Yes, lower concentrations would be removed to the same specs as listed up to 99.75%. The fluoride filters will only fluoride ions, arsenic, and heavy metals,
Thanks
Dan - Do you find this question helpful? Yes No
- From Rick at 2/4/13 2:28 PM
- Dan, I am hearing commercials on another Berkey like product that claims it is the only water filter that removes hydrofluosilicic acid (spelling) which is where we get fluoride in the water. How say you?
- Hi Rick -
There are 3 government approved fluoride additives to water; sodium fluoride, sodium fluorosilicate, and fluorosilicic acid (aka hydrofluorosilicic acid). All 3 forms dissociate to sodium, fluoride, and silicate ions in water. The PF-2's use alumina oxide which targets the fluoride ions in the water filtering out this fluoride regardless of the approved source additive used. So, in other words, regardless of the source, the chemicals break down into those 3 ions once mixed with water. The sodium and silicate components are not removed by the PF-2's.
Thanks
Dan - Do you find this question helpful? Yes No
- From Helen at 2/9/13 9:43 AM
- If you have four fluoride filters instead of two does that increase the usage time limit from two years to four years? Thanks for the very helpful information and layout!
- Hi Helen -
Once the filters touch water the clock starts ticking, so if you used 2 for 2 years, and then switched to the second pair for the next 2 years, then yes 4 would last for 4 years. If you started all at the same time, the time limit would still be 2 years for all 4 filters.
Thanks
Dan - Do you find this question helpful? Yes No
- If you have four fluoride filters instead of two does that increase the usage time limit from two years to four years? Thanks for the very helpful information and layout!
- From Grant at 2/14/13 3:19 PM
- I have high levels of naturally occurring fluoride in my well water (7.4 mg/L). Will this filter work to pull that out? So far people have referred me to bone-char or RO systems- but I would prefer a Berkey.
- Hi Grant -
Yes, the Berkey would be able to tackle this. From the testing: "Testing for fluoride was based on 20-30ppm of the ion in the influent aqueous solution at a flow rate of no more than 3 gpm (11 lpm) per cubic foot of media." 20-30 ppm is relatively equivalent to 20-30 mg/l, which is higher than what you are currently experiencing.
Thanks
Dan - Do you find this question helpful? Yes No
- From Marianne at 2/18/13 8:04 PM
- How often should I replace the arsenic and fluoride filters? We are a family of four.
- Hi Marianne -
Tt would depend on how many gallons you are filtering per day. You would want to determine this number and divide it into 1000 (which is the amount of gallons a set of PF-2's last for). I would approximate it between 1 and 1.5 years per set of 2.
Thanks
Dan - Do you find this question helpful? Yes No
- From James Herron at 3/22/13 6:14 PM
- If you over tighten them does it damage the filter?
- Hi James -
No, just please back them off the the 8 revolution mark. Their may be some extra manufacturing dust if you hit the pellets, but this will wash out with some re-priming if you notice this.
Thanks
Dan - Do you find this question helpful? Yes No
- From Shana at 4/1/13 10:29 PM
- We were going to purchase the Crown Berkey filter. Is there a wire stand available for this system?
- Hi Shana -
No, there is not a wire stand available. As an option some customers purchase 6" high, 3 or 4 legged wooden plant stands. These are strong enough to support the water weight.
Thanks
Dan - Do you find this question helpful? Yes No
- From GLORIA at 4/16/13 11:36 AM