4
5
the system cover for instant monitoring at the
touch of a button. The monitor compares the level
of the total dissolved solids in the incoming (feed)
water versus the product water and calculates
the percent rejection. The monitor is preset to
indicate a level of 75% rejection. NSF/ANSI
Standard 58 requires a 75% total dissolved solids
rejection to pass the requirement of the standard.
A green light indicates that the percent rejection
is at or above the set (desired) value and that the
system is producing quality water.
An amber light indicates that the product
water quality is less than acceptable. Because
the Water Quality Monitor was designed to
operate best while the system is making water,
a false reading may occur if tested when your
R.O. drinking water system is not making water.
Please empty the Holding Tank, wait 15 minutes
for the system to begin making water, and test
your water quality again. If the Water Quality
Monitor light is still amber, please contact a water
treatment professional for service. The Water
Quality Monitor requires a 9 volt battery, which
is included. Systems not equipped with a Water
Quality Monitor contain a Water Quality Test Kit.
SECTION II. SPECIFICATIONS
TABLE A – QUALIFIED SYSTEM PERFORMANCE
Because the performance of an R.O. Membrane is highly dependent upon pressure, temperature, pH and TDS, the
following should be used for comparison purposes only.
U.S. Metric
Membrane Production
1
35 ± 7 gpd 106-159 lpd
Membrane TDS Reduction
1
95% minimum 95% minimum
System Production² 13 gpd 49 lpd
Recovery Rating² 33% 33%
Efficiency Rating² 17% 17%
TDS Reduction² 90%+ typical 90%+ typical
Drain (reject water) Flow 3–5 x product flow 3–5 x product flow
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 R.O. Membranes performance with no backpressure on the product water, at 50 psig (345kPa) and 77°F (25°C). Further
conditions on the above are 350 ppm TDS. Production rate and TDS reduction figures 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 tendencies of the Feed Water.
2
Measured at 50 psig, 77°±2° F, 751 mg/l TDS per section 6.7 of NSF/ANSI Standard 58. Recovery rating means the percentage of the influent water to the
membrane portion of the system that is available to the user as reverse osmosis treated water when the system is operated without a storage tank or when the
storage tank is bypassed. Efficiency rating means the percentage of the influent water to the system that is available to the user as reverse osmosis treated
water under operating conditions that approximate typical daily usage.
TABLE B – 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 Sediment/Carbon Prefilter will remove chlorine from the incoming water. Change filter
every 6 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.