Birm Media (5–10 lbs) – Iron & Manganese Reduction Filter Media
Regular price $79.99 Sale price $69.99Birm® Media (5–10 lbs) – Iron & Manganese Removal
Efficient, Chemical-Free Water Treatment
Birm® is a trusted and economical filtration media designed to reduce dissolved iron and manganese from well and municipal water supplies. Acting as a catalyst, Birm® enhances the natural oxidation process, transforming soluble iron (Fe++) into insoluble ferric hydroxide (Fe+++), which can then be easily filtered out. Unlike other media, Birm® is not consumed during filtration, ensuring long service life and excellent cost efficiency.
⚠️ Note: This item cannot be shipped to California. A 5 lb bag is sufficient to fill a 20" Big Blue Filter.
✅ Key Advantages of Birm® Media
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No Chemicals Needed – Requires no regeneration chemicals; only periodic backwashing.
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High Efficiency – Exceptional iron and manganese removal under proper conditions.
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Durable & Long-Lasting – Low attrition loss with extended media life.
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Wide Operating Range – Performs effectively across a broad temperature range.
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Low Operating Cost – Minimal maintenance and no chemical costs.
🔹 Physical Properties
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Color: Black
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Bulk Density: 40–45 lbs/cu. ft.
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Mesh Size: 10 × 40
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Specific Gravity: 2.0 g/cc
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Effective Size: 0.48 mm
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Uniformity Coefficient: 2.7
⚙️ Conditions for Operation
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pH Range: 6.8–9.0 (8.0–9.0 for manganese removal)
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Maximum Water Temp: 100°F (38°C)
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Dissolved Oxygen: ≥ 15% of iron/manganese content
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Alkalinity: > 2× combined sulfate and chloride concentration
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Bed Depth: 30–36 in. | Freeboard: Minimum 50% of bed depth
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Backwash Rate: 10–12 gpm/sq. ft. | Bed Expansion: 20–40%
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Service Flow Rate: 3.5–5 gpm/sq. ft. (higher possible with favorable conditions)
⚠️ Limitations
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Free Chlorine: Must be < 0.5 ppm
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No oil or polyphosphates present
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Organic matter ≤ 4–5 ppm
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Hydrogen sulfide must not be present
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Pre-treatment with aeration or pH adjustment (Calcite, Corosex®, or soda ash) may be required if water pH is < 6.8 or dissolved oxygen is low.