Birm Filter Media (Removes Iron and Manganese from Well Water)

Birm Filter Media

Birm media is really a filter medium used in iron filtration systems. It oxidizes and eliminates iron and manganese without pre-treatment. but functions best following aeration. The pH must be 7.0 or above for Birm to function properly.


  • Under proper conditions, no chemicals required for maintenance.
  • Iron removal efficiency is very higher.
  • Only periodic backwashing required.
  • Durable material has a long life and a wide temperature range.
  • Regeneration not needed.

How It Functions

As water flows through the filter tank containing Birm media, with sufficient oxygen within the water, the media causes the iron to form rust or strong iron particles. After these rust particles get trapped in the filter media, once or twice a week they're automatically backwashed out to drain, and also the filter media is prepared to filter once more.

Change schedule

Birm may last for a lot of years below some conditions, however, the coating can wear off. The media may have to be replaced every 3-5 years.


  • Water should have a pH of 7.0 to 9.0.
  • The dissolved oxygen content must be a minimum of 15% of the iron or manganese content.
  • Water must include no tannins, chlorine, oil, or hydrogen sulfide (rotten egg odor). For water with any of these products we suggest the GreenSand filter.

Note: An inexpensive water test of one's raw well water is highly suggested before buying these systems.

For most wells deeper than 50 feet, an air injector should be utilized to introduce some extra oxygen in the water prior to the Birm filter. When the water becoming filtered is water from an open storage tank or spring, no additional air injection is usually required.

Birm Filter Certification


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