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| You need a reverse action sump pump switch. I have these on two solar systems and one to shut off a generator I have running a submersible pump filling a tank. Haven’t skipped a beat in several years.
https://www.princessauto.com/en/reverse-action-float-switch/product/...
You can adjust the upper and lower level by adjusting the length of cable the switch is tethered to.
Is your pump 110v or 220v? | |
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Electric Stock Tank Float
