FILTRATION MEDIA : Filter Sand

GENERAL DESCRIPTION

Filter Sand is a naturally occurring, river washed, glacial deposit products. Its excellent chemical properties - high in silica content and low in soluble calcium, magnesium and iron compounds - meet AWWA-B100-89 specifications. Precision sizing and uniform grading to close limits meet the rigid specifications of professional engineers throughout the United States, Canada and overseas.

Purpose - Filter Sand is graded specifically for water filtration plants. It can be used in municipal, industrial or residential applications.
 

Physical Properties:
Color	Light tan to reddish brown
Density	100 lbs./cu. ft.
Effective Size	0.45 - 0.55 mm
Uniformity Coefficient	1.6 or less
Acid Solubility	0.3 - 1.6%
Specific Gravity	2.65 - 2.75

 

Conditions For Operation:
Bed Depth	18 - 30 in.
Backwash Rate	15 - 20 gpm/sq. ft.
Backwash Expansion	35 % of bed depth
Service Flowrate	Municipal: 1.5 - 2 gpm/sq. ft. Industrial: 3 gpm/sq. ft. Domestic: 5 gpm/sq. ft.