ADVANTAGES
Under the proper conditions, no chemicals to purchase for maintenance. Regeneration 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 40-45 lbs. /cu. Ft.

PHYSICAL PROPERTIES
Color: Black
Bulk Density: 40-45 lbs. Cu. Ft
Mesh Size: 10 X 50
Specific Gravity: 2.0gm/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.
Maximum water temp: 100° F/38° C
Water pH range: 6.8-9.0
Dissolved Oxygen (D. O. ) content must be equal to at least 15% of the iron (or iron and manganese) content.
Bed depth: 30-36 in.
Freeboard: 50% of bed depth (min. )
Backwash rate: 10-12 gpm/sq. Ft.
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