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You may wish to operate your system at lower recovery rates where your dealer has identified water
conditions that may stress your membrane or where recommended pre-treatment feed water conditions
are not met. You may do so, though this must be accomplished by a combination of increasing the flow
of concentrate to waste and reducing the recirculation valve flow. This, done in balance, will maintain
the overall system pressure at previously stated normal operating pressures.
Where your system is equipped with flow meters, simply open the concentrate valve to the desired flow
rate and close the recirculation valve until the pressure registers normal operating pressure. Using the
formula:
% Recovery Rate = Flow rate of Permeate (Product Flow)
Flow rate of Pe Flow rate of Waste
adjust the valves until the appropriate balance is met. Once the new balance has been established
at normal operating pressure, you may wish to lock the valves in position by removing the handles
by loosening the setscrews located on the valve handle.
Section 5: System Maintenance
Changing Pre-filter Cartridges
The pre-filter cartridge should be changed, as a rule of thumb, every month, biweekly in heavy use
applications. It is critical that this be done to ensure that pre-treatment cartridge allow necessary flow
and that suspended particulate is removed from the feed water.
To change the cartridge, turn off the system’s power and as a safety precaution, close the water
supply to the unit. Repeat Step 7 (1) from the installation instructions above. Thoroughly flush and
clean the filter housings while they are disassembled. Always use Waterite factory cartridges as
replacements.
Monitoring your System Performance
Your system will be operating at its peak performance after about 24 hours of operation. You should
develop a daily log to track line pressure, system pressure, feed water TDS, permeate TDS, permeate
flow rate and waste flow rate. This will allow you to see any developing performance trends or alert
you to system changes that will require you to intervene. It will also be helpful for your dealer or
Waterite technical personnel to have this information available to help troubleshoot your system,
should it become necessary. The table provided in the last few pages of this manual (Section 9) will
help you get started.
Fast Flushing your VectaMaxx™ RSL
Consider ordering your system with the automatic auto flush option, which can be set for a
periodic fast flush automatically.
(Waterite P/N RSRAF) This option should be considered for any
application with over 4 grains/gallon of hardness, any measurable iron in the raw water source or raw
water TDS that exceeds 500ppm. This will substantially increase the life of the membrane element.
