System Maintenance; Ro Cartridge Replacement - Aerus ORIGINS RO400 Manuel D'utilisation

SYSTEM MAINTENANCE

PREFILTER/POSTFILTER
Notice: The pre-filter and post-filters are replaceable carbon cartridges located in stages 2 and 4. It is
recommended replacing these cartridges at least every 6 months. You may need to replace more often
with high water usage or high sediment level. Replacing these cartridges timely will protect the RO
membrane from high levels of chlorine and/or sediment. As these filters build up with sediment, you may
notice slower water output.
RO MEMBRANE CARTRIDGE
The RO cartridge is located in stage 3. This membrane is a spiral wound membrane which reduces the dissolved solids and organic matter.
Cartridge life depends on pH and supply water hardness. Higher pH shortens membrane life by causing pin-hole leaks. If pH is higher than
8.0, cartridge life may be as short as 6 months. If pH is under 7.5, cartridge life may last up to 24 months. When output water quality and
production rate decrease, it is time to replace the membrane cartridge.
Flow rate and output are determined by 3 factors:
1. Incoming water temperature
2. Total dissolved solids (TDS) present in supply water
3. Incoming water pressure
Lower temperatures are directly proportional to slower flow rate. All membranes are tested at 77°F. Incoming water temperature should not
exceed 100°F. The RO Filter System should also not be installed in a location susceptible to freezing.
The more TDS in the supply water, greater filter time is required. Incoming TDS should not exceed 1800 ppm.
Higher water pressure enables a higher flow rate. Pressure must be above 40 psi for proper system operation. You may consider installing a
permeate pump or booster pump if your pressure is below 40 psi.

RO CARTRIDGE REPLACEMENT

1. Shut off inlet valve at (F) kitchen faucet adapter.
2. Remove 1/4" drain tube from bottom of membrane cartridge.
3. Remove the pre-filter cartridge by turning it counterclockwise and pulling down to first relieve pressure on the RO filter.
4. Turn RO filter counterclockwise while pulling down and remove.
5. Remove post-filter cartridge by turning counterclockwise while pulling down.
6. Discard cartridges.
7. Install new cartridges in reverse order turning to the right to secure:
4 – Post-Carbon Block Cartridge
3 – RO Membrane Cartridge
2 – Pre-Carbon Block Cartridge
1 – Sediment Cartridge
8. Install 1/4" red tube into fitting at bottom of membrane cartridge. (do not remove (I) flow restrictor)
9. Purge RO Filter System as outlined in Step Eight (page 11).
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