4
SECTION II. SPECIFICATIONS
TABLE A – RECOMMENDED OPERATING LIMITS FOR FEED WATER
Specifications
T.F.C. Membrane
Water Pressure
40–100 psig (280–690 kPa)
TDS
2000 ppm (also mg/l) max.
Temperature
40–100°F (4–38°C)
pH
4–11 (optimum rejection at pH 7.0 - 7.5)
Hardness
Less than 10 gpg (170 mg/l) or soften
Iron
Less than 0.1 ppm (also mg/l)
Manganese
Less than 0.05 ppm (also mg/l)
Hydrogen Sulfide
None
Chlorine
See note
Bacteria
Must be potable**
NOTE: Chlorine will damage a T.F.C. Membrane. The Activated Carbon Prefilter has been designed to reduce chlorine from the
incoming water. Change filter every 6 to 12 months, more often if the water contains more than 1 ppm chlorine.
**DO NOT USE WITH WATER THAT IS MICROBIOLOGICALLY UNSAFE OR OF UNKNOWN QUALITY, WITHOUT ADEQUATE
DISINFECTION BEFORE OR AFTER THE SYSTEM.