Clack's Birm is a efficient and economical media for the reduction and removal of dissolved iron and manganese.

Sold per 1/2 cuft

Part or Model # A8006

Download the full manufacturers spec sheet here.

ADVANTAGES •  Under the proper conditions, no chemicals to purchase for maintenance. Regenerant not required. • Iron removal efficiency is extremely high. •  Negligible labor cost: only periodic backwashing required. •  Durable material with a long life and wide temperature range. •  Weighs only 36-38 lbs./cu. ft.
PHYSICAL PROPERTIES •  Color: Black •  Bulk Density: 36-38 lbs./cu. ft. •  Mesh Size: 12 x 50 •  Specific Gravity: 2.0 gm/cc •  Effective Size: 0.48 mm •  Uniformity Coefficient: 2.7
CONDITIONS FOR OPERATION •  Alkalinity should be greater than two times the combined sulfate and chloride concentration. •  Temperature Range: 35-100oF •  Water pH range: 6.8-9.0 •  Dissolved Oxygen (D.O.) content must be equal to at least 15% of the iron and 29% of the manganese content. •  Bed depth: 30-36 in. •  Maximum Pressure Drop: 2-4 psi (14 -28 kPa) (∆P p increase from clean bed) •  Freeboard: 50% of bed depth (min.) •  Backwash rate: 10-12 gpm/sq. ft. •  Rinse Rate: At service flow rate •  Backwash Bed Expansion: 20-40% of bed depth (min.) •  Service flow rate: 3.5-5 gpm/sq. ft. intermittent flow rates and/or favorable local conditions may allow higher flow rates
INFLUENT AND BACKWASH LIMITATIONS •  Free chlorine concentration less than 0.5 ppm •  Hydrogen Sulfide should be removed prior to contact with Birm media •  Oil: None Present •  Polyphosphates: None present •  Organic Matter: Less than 5 ppm TOC