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Description:
Whole House Water Filter System - Point of Entry - 1 CU FT GAC - KDF 85 Media Guard
KDF 85 Medium Removes or reduces iron and hydrogen sulfide from well or other water supplies.
Also controls scale, bacteria and algae.
KDF 55 & KDF 85 process media can remove up to 99% of water soluble lead, mercury, nickel, chromium, chlorine and Hydrogen Sulfide and other dissolved metals
Redox media alloys function as catalysts to change soluble ferrous cations (positively-charged ions) into insoluble ferric hydroxide, which can be removed with regular back washing. With enough oxygen dissolved in the water, iron removal rates of 98 percent or better are common.
You may not even realize that KDF® process media are working for you. KDF media is the core product of many filtration systems, and can be used in conjunction with other products to provide superior purification.
Patented KDF process media consist of high-purity copper-zinc formulations. These substances exchange electrons or bond with chlorine and other metals contained in the water to create harmless substances.
Through this basic chemical process known as redox (oxidation/reduction), KDF process media work behind the scenes to rid your water of chlorine, lead, mercury, iron and hydrogen sulfide. The redox reaction also inhibits the growth of bacteria, algae, and fungi. As an added benefit, KDF media reduce lime scale, mold, and fungi in your tub or shower. KDF process media are completely safe. KDF media meet EPA and Food and Drug Administration standards for levels of zinc and copper in potable water, so the process is not toxic and does not cause any adverse side effects. KDF media are certified by the NSF Standard 61 and Standard 42 - Your assurance that they meet public safety standards.
KDF media are environmentally sound and 100 percent recyclable, but refer to the instructions enclosed with your filter or system for proper disposal, as different manufacturers combine KDF process media with other filtration technologies.
WWW.KDFFT.COM
http://www.kdfft.com/HowItWorks.htm click on this link for more information.
1 CU FT OF GRANULAR ACTIVATED CARBON:
Carbon is a substance that has a long history of being used to absorb impurities and is perhaps the most powerful absorbent known to man. One pound of carbon contains a surface area of roughly 125 acres and can absorb literally thousands of different chemicals. Activated carbon which has a slight electro-positive charge added to it, making it even more attractive to chemicals and impurities. As the water passes over the positively charged carbon surface, the negative ions of the of the contaminants are drawn to the surface of the carbon granules. Activated carbon filters used for home water treatment typically contain either granular activated carbon or powdered block carbon. Although both are effective, carbon block filters generally have a higher contaminant removal ratio. The two most important factors affecting the efficiency of activated carbon filtration are the amount of carbon in the unit and the amount of time the contaminant spends in contact with it. the more carbon the better. Similarly, the lower the flow rate of the water, the more time contaminants will be in contact with the carbon, and the more absorption that will take place. Particle size also affects removal rates. The most common carbon types used in water filtration are bituminous, wood, and coconut shell carbons. While coconut shell carbon typically costs 20% more than the others, it is generally regarded as the most effective of the three. All of our activated carbon filters use coconut shell carbon. There are two principal mechanisms by which activated carbon removes contaminants from water; absorption, and catalytic reduction, a process involving the attraction of negatively-charged contaminants ions to the positively-charged activated carbon. Organic compounds are removed by absorption and residual disinfectants such as chlorine and chloramines are removed by catalytic reduction. Activated carbon filtration is very common in a number of home water treatment systems. It can be used as a stand alone filter to reduce or eliminate bad tastes and odors, chlorine, and many organic contaminants in municipal (pre-treated or chlorinated) water supplies to produce a significantly improved drinking water. It is also very commonly used as a pre-treatment as part of a reverse osmosis system to reduce many organic contaminants, chlorine, and other items that could foul the reverse osmosis membrane. 0.5 block filters are commonly used to remove cysts such as giardia and cryptosporidium. Activated carbon filters remove/reduce many volatile organic chemicals (VOC), pesticides and herbicides, as well as chlorine, benzene, trihalomethane (THM) compounds, radon, solvents and hundreds of other man-made chemicals found in tap water.
Note:
**Hydrogen sulfide concentrations exceeding 7 to ppm can be removed by injecting an oxidizing chemical such as household bleach followed up by filtration. The oxidizing chemical should enter the water upstream from the storage or mixing tank to provide at lease 30-45 minutes of contact time between chemical and water. The of the holding time is a function of the chemical dosage, tank configuration and water temperature. Sulfur particles can then be removed by activated carbon filtration.
If test results indicate that bacterial contamination is occurring, shock chlorination (disinfection) is the one time introduction of a strong solution into the entire water distribution system (well, pump, distribution piper, etc.)
When to shock Disinfect the well:
Shock chlorination (disinfection) is recommended when lab results indicate a presence of bacteria upon completion of a new well or after pump replacement or repair, when the distribution system is opened for repairs or maintenance, following contamination by flood water, to control iron and sulfur bacteria.
Shock chlorination (disinfection) is recommended in these circumstances to ensure that bacterial contamination is controlled.
This system should be used where low to moderate ferrous (dissolved) iron hydrogen sulfide contamination is know. This filter is most effective are less them 5 ppm. Best removal rates are achieved where pH is between 6.5 and 8.5 and where water contains some dissolved oxygen.
FILTRATION SYSTEM KITS
Aquatrol MFV-1 Manual Back Wash Valve
APPLICATIONS:
Whole House Filtration
This unit includes the following:
9" x 48" Mineral Tank (Color Varies)
Manual Back Wash Valve
1 CU Ft GAC Carbon
1 KDF85 Media Guard
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