i2ik,
Water Changes are performed at preset times.
Water will be drained off using the switchable socket.
At this time a sensor detecting a minimum water level will be shutting it off .
Then another switchable socket is automatically kicked on until a second water sensor is reading a maximum water level.
There is also a maximum on time for these outlets preset for "water" on 1 and 2, therefore if a sensor fails this outlet will automatically turn off according to what you have preset.
Marc.
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Confucious say : Things that come to those who wait, will be things left over by those who didnt.
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