Description
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/ft² Service Flow
Birm is rated for 3.5-5 GPM service flow per square foot of tank area
Min. 10 GPM/ft² 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/ft² | Physical Form | Granular | |
| Freeboard | 50%(min) | Mesh Size | 10 x 40 | |
| Backwash Rate | 10-12 GPM/ft² | 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 contaminant levels, backwash flow rates, and backwash frequency | |
Service Flows
Service flow rate is the manufacturers recommendation for maximum contaminant removal at a constant flow for media alone. Intermittent flow rate and/or lower contaminant levels MAY allow higher treatment flow rates.
Backwash Flow Rates
The backwash flow rate is the minimum rate that MUST be available to ensure proper backwashing and adequate media life. While lower flows can be used and MAY provide adequate results, media life may be significantly reduced.
Service flow rate is the manufacturers recommendation for maximum contaminant removal at a constant flow for media alone. Intermittent flow rate and/or lower contaminant levels MAY allow higher treatment flow rates.
Backwash Flow Rates
The backwash flow rate is the minimum rate that MUST be available to ensure proper backwashing and adequate media life. While lower flows can be used and MAY provide adequate results, media life may be significantly reduced.
