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Do You Have Iron Present In Your Source Water?

Updated: Jul 18, 2022

Is Iron present in your source water? High levels of Iron can cause premature wear on equipment, discoloration and staining, as well as being harmful to your irrigation system and plants. In most cases when Iron (FE) is present, manganese (MN) will be as well. With the I-Series Filtration Systems from Everfilt®, we can effectively remove or significantly reduce these elements to undetectable levels as low as 0.001 ppm and manganese to 0.001 ppm.

DMI-65® is a granular material of dark brown to black color. This color is produced by the manganese oxide in the outer layers of the granules. DMI-65® is a catalytic media in the true meaning of the word and facilitates oxidation—precipitation-filtration and does not get consumed in the reactions.

The media does not need regeneration or reactivation and does not display a decaying capacity to do its catalytic work. Over a 5 to 10 years period, through many backwashing operations of the bed to remove retained solids, the media is degraded by contact between particles and mechanical abrasion. Then the material has to be replaced. In order to begin the process of oxidation of the ions in solution and to ensure that the oxidative layer is not compromised, the media is designed to operate in the presence of chlorine or other oxidants.

In this process, the oxidant removes electrons and is consumed in the process. The operator needs to ensure that there is a 0.1 - 0.3 PPM free chlorine residual in the effluent water.


  • Multiple system sizes and configurations to accommodate flows from 15 GPM to 4500 GPM.

  • Effective in removing or reducing Iron (FE) in applications from: 0.1 to 25 PPM Iron (FE) is present.

  • DMI-65 media does not need regeneration or reactivation and does not display a decaying capacity.

  • Life expectancy is typically between 3 - 7 years.

  • Removes 75% + Iron and Manganese (MN) in source water.

  • DMI-65 has been shown to be effective in the removal of Arsenic associated with iron-containing influent.


  • Automatic backwash initiated on set time interval or signal from Pressure Differential Switch.

  • Backwash operation (1ea.) tank at a time, using water internal to the system.

  • Skid-mounted for maneuverability and ease of installation.

  • Full-line of replacement parts.

  • DMI-65® has been tested and certified by the Water Quality Association in accordance with NSF/ANSI 61, DMI-65® is not consumed in the process.

  • After initial activation, only sodium hypochlorite injection is required.

To discuss more information regarding Everfilt® Water Filtration Systems, talk with an Everfilt® Applications Engineer: 1.800.360.8380 /


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