Balboa BP6013G1 Installation And Directions Of Use page 14

Filter Cycle 2 - Optional Filtration
Filter Cycle 2 is OFF by default
It is posibble to overlap Filter Cycle 1 and Filter Cycle 2,which will shorten overfall filtration by the overlap amount.
Purge Cycles
In order to maintain sanitary conditions, secondary Pumps and/or a Blower will purge water from their respective
plumbing by running briefly at the beginning of each filter cycle.
If Filter Cycles 1 is set for 24 hours,enabling Filter Cycle 2 will initiate a purge when Filter Cycles 2 is programmed
to begin.
(9)Light Timer Programming
Light Timer Option
If LIFE TIMER does not appear in the Main Menu,
the Light Timer feature is not enabled by the manufacturer.
When available,the Light Timer is OFF by default.
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