Balboa Water Group ML900 - Mach 2.1 User Guide - Manual (Page 10)

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Periodic Reminder Messages (Press the “Mode” button to reset a displayed reminder.*)
Message ** Frequency *** Action Required
Every 7 days Test and adjust pH chemical levels per manufacturer’s instructions.
Every 7 days Test and adjust sanitizer chemical levels per manufacturer’s instructions.
Every 30 days Remove, clean, and reinstall filter per manufacturer’s instructions.
Every 30 days Test & reset GFCI per manufacturer’s instructions.
Every 90 days Drain and refill spa per manufacturer’s instructions.
Every 180 days Clean and condition cover per manufacturer’s instructions.
Every 180 days Clean and condition wood per manufacturer’s instructions.
Every 365 days Install new filter.
As needed Install new Mineral cartridge.
* User can suppress all reminders in User Preferences.
** All of these Periodic Messages can be disabled individually by the spa manufacturer.
*** Any of these frequencies may be changed by the spa manufacturer.