3-STAGE RO SYSTEM – MODEL AQ-RO-3
U.S.
Metric
Membrane Production
1
35 gpd
132 lpd
Membrane TDS Reduction
1
95% minimum
95% minimum
System Production
2
13.32 gpd
50.4 lpd
TDS Reduction
2
96.3%+ average
96.3%+ average
Maximum TDS
1000 ppm
1000 ppm
Maximum water hardness @ 6.9pH
10 gpg
2.64 gpL
Maximum Chlorine in water
3.0 ppm
3.0 ppm
Supply water pH limits
4-10
4-10
Drain (reject water) Flow
3-5 x product flow
3-5 x product flow
Empty Storage Tank Precharge
5-7 psi air
35-48 kPa air
Storage Tank Capacity
2
3.2 gallons
12.11 liters
Supply water pressure limits
40-100 psi
275-689 kPa
Supply water temperature limit
40-100⁰ F
5-37⁰ C
Efficiency
3
17.91%
17.91%
Recovery
4
29.43%
29.43%
Capacity at various water pressure levels
(with 5 psi precharge)
U.S. Gallons
Total Volume
20 psi
30 psi
40 psi
50 psi
60 psi
70 psi
3.2
1.4
1.8
2.0
2.2
2.4
2.5
Specifications – Qualified System Performance
Because the performance of a Reverse Osmosis Membrane is highly dependent upon pressure,
temperature and TDS, the following should be used for comparison purposes only.
1 Industry standards measure RO Membranes performance with no back pressure on the
product water, at 60 psig (414kPa) and 77°F (25°C). Further conditions on the above are 250
ppm TDS and a 30.6% recovery rate. 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 psi, 77°±2°F, and 717 mg/l TDS per NSF/ANSI Standard 58.
3 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.
4 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.
Do not use with water that is microbiologically unsafe or of unknown water quality
without adequate disinfection before or after the system. Systems certified for cyst
reduction may be used on disinfected waters that may contain filterable cysts.
Filter is only to be used with cold water. Systems certified for cyst reduction may be
used on disinfected water that may contain filterable cysts.
Non-potable Water Sources:
Do not attempt to use this product to make safe drinking water from non-potable water
sources. Do not use the system on microbiologically unsafe water, or water of unknown quality
without adequate disinfection before or after the system. This system is certified for cyst
reduction and may be used on disinfected water that may contain filterable cysts.
Installations in The Commonwealth of Massachusetts:
The Commonwealth of Massachusetts requires installation be performed by a licensed plumber
and do not permit the use of saddle valves. Plumbing code 248—CMR of the Commonwealth of
Massachusetts must be followed in these cases.
