... Units Fw : 1 gpd/ft2 = 0.1337 ft/d Kw : 1 gpd/ft2/psi = 0.0578/day–1 ... or L/sec 4.720 × 10–1 ppm mg/L 1 ft m 3.048 × 10–1 gal m3 3.785 × 10–3 or ML ...
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