Microsoft Word - WaterChemistry

460

FILTRATION
FILTRATION RATE = Flow Rate (gpm)
(gpm/sq. ft) Surface Area (sq. ft)

BACKWASH PUMPING RATE = Filter Area (sq. ft) X Backwash Rate (gpm/sq. ft)
(gpm)

FILTRATION RATE = Flow Rate (gpm)
(gpm/sq. ft) Filter Area (sq. ft)