Commonly referred to as the Troublesome Trio, Iron, Manganese and Sulfur, although not a real health concern, will reap havoc on a plumbing system. Â As little as 0.05ppm of Manganese will cause staining of plumbing fixtures. Â Only 0.5 ppm of iron will cause staining.Â And Sulfur? Â P.U.! Â Need I say more?
To battle the Trio, professionals have traditionally used Ion Exchange water softeners and Oxidation/Reduction media. Â Ion Exchange only works on dissolved iron and manganese and is prone to fouling and won't treat sulfur. Â So my experience is to apply oxidation media that has been treated with a coating of Manganese Dioxide. Â These media are popular in the industry and are sold under the trade names of Birm, MTM, Â Pyrolox, Filox, and Greensand Plus. Â All these media have different percentages of manganese dioxide coatings. Â The amount of coating determines their capacity. Â The key to success lies with this capacity.
Manganese Dioxide acts as a catalyst that utilize oxidizers fed into the water stream ahead of the media bed to perpetuate the oxidation and reduction process. Â Pre-feeding oxidizers is commonly called "regeneration". Please note, in all my years of experience, your success with these media depends heavily on choosing the correct oxidizer. Â It is a VERY rare application where you don't need to pre-feed an oxidizer. Â The most popular oxidizers are potassium permanganate (very messy because it stains everything purple) , Sodium hypochlorite (bleach), Air, or 7% Hydrogen Peroxide.Â The most popular is bleach. Â Be careful to follow the manufacturers guidelines for feeding oxidants.Â Â To much will strip off the manganese dioxide coating.
Now The Exciting News:
Prince Minerals has developed a new Media called Pyrolox Advantage (PA).Â PA is manufactured with a proprietary process that gives it a high capacity, yet maintains a lighter-than-most density so backwash rates are greatly reduced over traditional Manganese Dioxide products. Â Thus the "Advantage" part. Â Additionally, its lighter density will make it a direct replacement for another popular media called Greensand Plus. Â An even bigger advantage, is that Pyrolox Advantage has nearly 3X the oxidation capacity. Â Its increased capacity will lengthen run time between back washing saving significant amounts of water. Â To conclude, if you are currently filtering with greensand plus or are battling any of the Troublesome Trio, please try Pyrolox Advantage. Â It's priced right to win the fight!
Complete focus on water treatment equipment enables Nalco Res-Kem to assist with the wide variety of filter media choices and uses. Whether you are replacing the filter media in a multi-media filter, greensand filter or support bed, our engineer and filter media specialists are ready to help. Â Give us a call for more information.