I've just installed my ATK using the task function for now, but intend to ditch the psu and use the 1 link supply once I'm sorted.
I found it strange that the control sensor is normally closed and opens when the level drops. On my current 2 float set up I always had the float normally open, closing when water was demanded by low level. Similarly the float closed when high level reached
On the ATK sensor 2 is normally open, closing when high level is reached.
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