To keep your Aquasential
®
RO and Smart RO Advanced Drinking Water Systems operating properly, it is necessary to
change the filters and sanitize the systems periodically� Typically, this should be done on an annual basis� Service
frequency may vary depending on local water conditions� High sediment, chlorine, turbidity, or hardness levels may
require more frequent service� Use the following as a guide:
As Needed
Clean the faucet with a soft cloth, avoid abrasive cleaners
Annually
Replace stage 1 filter
(Unless 2yr filter installed)
Check RO tank pre-charge pressure
Replace stage 3 specialty filter
(Unless 2yr filter installed)
Check TDS reduction performance
Replace stage 4 filter
(Unless 2yr filter installed)
Check flow rates (including air gap)
Check stage 2 RO Membrane
Check drain tubing for back-up
It is recommended to have your local Culligan dealer perform the sanitization process� Your local Culligan dealer has been
specifically trained to test the water quality and efficiency of the system in order to determine when the RO membrane should
be replaced and ensure the system is working properly�
Any time the water is going to be turned off to the unit, the power should also be turned off�
Contact your local Culligan dealer for replacement cartridges and maintenance�
Stage
Filter Cartridge
Capacity
1
Sediment / Carbon Combination Prefilter
1 year
2 year
2
RO Membrane
50 gpd* (Aquasential
®
RO)
75 gpd* (Aquasential
®
Smart RO)
3
Specialty Total Defense¹
1 year or 1,000 gallons
2 year or 2,000 gallons
Specialty Total Defense with Mineral¹
1 year or 1,000 gallons
2 year or 2,000 gallons
Specialty Remineralization
1 year or 1,000 gallons
2 year or 2,000 gallons
Specialty Arsenic²
1 year or 1,000 gallons
2 year or 2,000 gallons
4
Postfilter, 1 year
1 year or 1,000 gallons
2 year or 2,000 gallons
Advanced Postfilter (P231)¹
1 year or 1,000 gallons
2 year or 2,000 gallons
¹ All specialty cartridges must have a Performance Indicator Device (PID) installed to track gallon usage�
*
Membrane element specification� System daily production rated to pressurized storage tank 27�8 gpd (Aquasential RO) and 34�1 gpd
(Aquasential Smart RO)�
17
01040605 A 06/21
Care & Cleaning
