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Step 3. Plan Your Water System
1. Using a Pressure Storage Tank and Pressure Switch
Your RO system will produce permeate (product water) at a pressure capable of pressurizing a
bladder tank, though tank recovery time will be limited by the production rate of the membrane(s).
Rates of water production for Vectapure™ RSXII Lite systems are, at maximum (feed water
@<1000 TDS), +-10%:
RSX800LB
0.55 USG/min. (2.0 litres/min.)
For many systems, this rate of recovery will be insufficient in periods of peak usage. It will be
necessary for you to provide product water storage in a non-pressurized tank from which you may
re-pressurize the water for delivery to your appliances or plumbing system.
2. Using an Atmospheric Pressure (non-pressurized) Storage Tank and Float Switch
Your Vectapure™ RSXII Lite RO may be controlled by a float control shut-off switch that shuts the
system down when a non-pressurized storage tank is filled. Or an electrically actuated valve will be
required to shut off the system. It can be attached to either the raw water feed or the permeate
line. (Consult your Waterite dealer for recommendations).
Make sure that the tank size is selected to provide adequate water storage for your peak demand
period. Keep in mind that atmospheric water storage vessels are subject to contamination by
airborne bacteria – they should be sanitized before use and periodically disinfected. RO product
water will have no chlorine residual and will be subject to contamination at all stages in the
plumbing system. Consider UV disinfection as an inline option for all water being pumped from the
storage tank into the plumbing system.
If the inlet bulkhead fitting to the non-pressurized tank is below the maximum water level in the
tank, make sure that a check valve is installed in the product water line between the RO unit’s
outlet and the tank inlet. This will ensure that backpressure from the tank will not damage the
membrane(s).
Ensure that any tank float switch connected to a pump, is designed to carry the full load amperage
of the re-pressurization pumps drive motor.
Consult your
Waterite Commercial RO Systems Price List
for information and availability on a
wide variety of water system components including storage tanks, repressurization pumps,
bulkheads, tube, pipe, pressure switches, fittings, UV disinfection systems and float valves.
Section 3. Installation
Your system includes:
The main RO/filter unit assembly stand
o
Pre-Filter Housing
o
Auto Shut-Off Valve
o
Dual Channel TDS monitor
o
Permeate and Waste Flow meters
o
Inline Concentrate Flow Control (DLFC)
o
Two Encapsulated 400 gpd membranes
o
Pre/Post Filter Pressure Gauges
5 micron 10” x 4” Spun Polypropylene Sediment Filter Cartridge
One Filter Housing Wrench;
One Owner’s Package
(including owner’s manual and warranty certificate).
3m ¼” Black LDPE Tubing (Drain)
8m 3/8” Clear Poly LDPE Tubing (Feed & Permeate)
