Product Review

Birm for iron and manganese


Product Features

1.0 cubic foot Birm

For removal of iron and manganese from water supplies

Removes up to 8 ppm iron

Causes red/orange staining with levels as low as 0.3 ppm. Treats both
ferrous (clear water or dissolved) and ferric (red water or oxidized) iron.

Removes up to 6 ppm Manganese

Can cause black slime buildup in toilet tanks and may impart a metallic
taste to the water

3.5-5 GPM/ft? Service Flow

Birm is rated for 3.5-5 GPM service flow per square foot of tank area

Min. 10 GPM/ft? Backwash Flow

Birm requires 10-12 GPM per SQUARE foot of tank area for backwashing


Product Description

Birm provides removal of iron and manganese in most applications. Amount of
media needed can be determined by tank size.

8"x44" Tank - 0.5 cubic foot

9"x48" Tank - 1 cubic foot

10"x54" Tank - 1.5 cubic feet

12"x48" Tank - 2 cubic feet

13"x54" Tank - 3 cubic feet


More Info

Operation Conditions Physical Properties
pH Range 6.8 - 9.0 Color black
Service Flow 3.5-5 GPM/ft? Physical Form Granular
Freeboard 50%(min) Mesh Size 10 x 40
Backwash Rate 10-12 GPM/ft? Bulk Density 35-40 lb/cubic feet
Bed Depth 30"-36" Specific Gravity 2.0
Removal Capacity Standard Package 1.0 cubic foot bags (43 lb)
Iron up to 8 ppm Life Expectancy
Manganese up to 6 ppm Typical Results 4-5 years average dependant on
contaminate levels, backwash flow rates, and backwash frequency
Service Flows
Service flow rate is the manufacturers recommendation for maximum
contaminate removal at a constant flow for media alone. Intermittent flow
rate and/or lower contaminate levels MAY allow hig