Maintenance
Elix® 20, 35, 70 and 100 40
4-6 HOW TO CLEAN THE RO CARTRIDGE(S)
WHAT IS NEEDED TO CLEAN THE RO CARTRIDGE(S)
CLEANING PORT KIT
The RiOs/Elix-L Cleaning Port Kit is used to introduce the chemical cleaner (as a pouch containing a dry chemical cleaner) into
the Elix System. The Cleaning Port Kit, when installed, has a removable cap. This cap can be unscrewed and a pouch can be
placed inside. It is not possible to make a chemical cleaner in the liquid form and pour it into the RO Cartridge.
The Cleaning Port Kit is not supplied with the standard Elix System. It is
necessary to order a Cleaning Port Kit as a separate item. See Section 6-2.
It is recommended to have a Millipore SAS Field Service Representative install the Cleaning Port Kit. The installation of the
Cleaning Port Kit involves removing the cover of the Elix System. The instructions for installing the Cleaning Port Kit are not
included in this manual. The instructions are included with the Cleaning Port Kit.
ROCLEAN™ A OR ROCLEAN™ B TABLETS
Millipore SAS recommends RoClean A or RoClean B as the RO Cartridge cleaner.
RoClean A is an acidic cleaner. The Millipore SAS Catalogue Number for RoClean A is ZWACID012 (10 pouches per box).
RoClean B is a base cleaner. The Millipore SAS Catalogue Number for RoClean B is ZWBASE012 (10 pouches per box).
WHICH CLEANER TO USE, ROCLEAN A OR ROCLEAN B?
Contact Millipore SAS for assistance is choosing the type of cleaner for your Elix System.
RoClean B is normally used when the Feedwater contains a high amount of silt and other organic matter.
RoClean A is normally used when the Feedwater contains a high amount of hardness and alkalinity.
HOW OFTEN SHOULD THE RO CARTRIDGE(S) BE CLEANED?
Millipore SAS recommends that an RO Cartridge(s) be cleaned whenever:
the RO % Rejection decreases 3% under standard operating conditions or
the RO Product Water Flow Rate drops 10% under standard operating conditions
As an example, suppose a new Elix 70 is operating at 97.5% RO % Rejection. The Elix System is fed with feedwater from a large
lake (surface water). Over the course of a few months, the RO % Rejection has dropped to 93%. In this case, the use of RoClean
B is recommended.
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