4
SECTION II. SPECIFICATIONS
TABLE A – QUALIFIED SYSTEM PER FOR MANCE
Because the performance of an R.O. Mem brane is highly dependent upon pressure, temperature and TDS, the
following should be used for com par i son purposes only.
U.S. Metric
Membrane Production
1
35 ± 7 gpd (106–159 lpd)
Membrane TDS Reduction
1
95% minimum 95% minimum
System Production² 11 gpd 42 lpd
TDS Reduction² 90%+ typical 90%+ typical
Drain (reject water) Flow 3–5 x product fl ow 3–5 x product fl ow
Empty Storage Tank Precharge 5–7 psig air 35–48 kPa air
Storage Tank Capacity
2
1.8 gallons 6.8 liters
1
Industry standards measure RO Mem branes performance with no backpressure on the product water, at 60 psig (414kPa) and
77°F (25°C). Further conditions on the above are 250 ppm TDS and a 15% recovery rate. Production rate and TDS reduction
fi gures are for a new Membrane that has been rinsed for 24 hours. The production rate of a new Membrane can decrease by
10% per year or more, depending upon the scaling and fouling ten den cies of the Feed Water.
2
Measured at 50 psig, 77°±2°F, and 717 mg/l TDS per NSF/ANSI Standard 58.
TABLE B – RECOMMENDED OPERATING LIMITS FOR FEED WATER
Specifi cations 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
3–11
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 Sulfi de
None
Chlorine
See note
Bacteria Must be potable**
NOTE: Chlorine will damage a T.F.C. Membrane. The Sediment/Carbon Module will remove chlorine from the incoming water.
Change fi lter every 6 months, more often if the water contains more than 1 ppm chlorine.
**DO NOT USE WITH WATER THAT IS MI CRO BI O LOG I CAL LY UN SAFE OR OF UNKNOWN QUALITY, WITHOUT AD E QUATE DIS IN -
FEC TION BEFORE OR AFTER THE SYSTEM.
Summary of Contents for ECLIPSE WRO-35
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