Hi I need help
I have a DOS and ffm
I would like the fmm to stop water changes when the water is below the sensor.
my DOS heads are labeled OSW ( old salt Water ) and NSW ( new salt water )
My sensor is labeled : Swx8_1
it is closed when submerged and should turn off both OSW and NSW when it is open and out of the water
Can someone please help me? how do I this??
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