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TROUBLESHOOTING
Q. Why is my DI Resin depleted so quickly?
A. This is caused when too many Total Dissolved Solids (TDS) are allowed to enter the cartridges. Check
the following:
1. If a new RO Membrane has been installed, the preservative in the Membrane must be flushed PRIOR
to allowing the Membrane-filtered water to flow though the DI cartridges.
2. If the RO Membrane is not seated properly in the Membrane Housing, water can by-pass the
membrane and higher TDS water will deplete the DI resin cartridge quickly.
3. If the RO Membrane has been damaged (such as chlorine damage), it might not work properly and
higher TDS water will deplete the DI cartridge quickly.
4. When the RO unit is shut off, water pressure equalizes around the Membrane. This causes higher-
TDS water to collect on the filtered water side of the Membrane. When the RO unit is turned back on,
the initial output of RO filtered water will have a higher TDS. In some instances, it is necessary to discard
the first few gallons of membrane filtered water before letting the filtered water enter the DI Unit.
5. DI Resin is depleted when it comes in contact with carbon dioxide in the air. If you are using a
cartridge that was not sealed in plastic wrap or used bulk resin that wasn't stored/packaged in an air-
tight container, the resin may already have lost its adsorption properties.
6. High levels of CO2 in your water will deplete the DI Resin quickly. If your water has high levels of CO2,
it will be necessary to off-gas the CO2 in the water before pumping it through the DI Resin. This is often
accomplished by filling a container with RO water and adding an air-store to the container for a period
of time. Then the water can be pumped through the DI Resin to remove the remaining TDS.
Q. Can I replace the resin in the cartridges?
A. Yes, bulk color-changing resin is available to replace the resin in the cartridges. A 1 Liter bag of
Aquatic Life DI Resin will fill three 10" Cartridges. A 5 Liter bag of DI Resin will fill fifteen 10" Cartridges.
Always wear gloves and eye protection when working with DI Resin.
Q. How come my DI Cartridge doesn't last as long as I've heard/read it has from other people?
A. The resin in DI Cartridges removes a set amount of TDS from water. The higher the TDS going into the
DI Cartridge, the quicker the resin will be depleted. For example, if the water going into your DI
Cartridge is 1 TDS and your neighbor has water with 10 TDS going into his DI Cartridge, your DI Cartridge
will last 10 times longer than your neighbors.
ADDITIONAL PURCHASE CONSIDERATIONS
Depending on your installation and application needs, you may find other Aquatic Life products helpful
with this Deionization Unit.
Visit
www.aquaticlife.com
for the complete line of Aquatic Life filtration products and accessories.
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