Tripper as an Oil Tank Low Level Sensors by Jon Jenkins
Jon Jenkins came up with this great idea to use a tripper as an Oil Tank Low Level sensor.
Note, your bobber must have a magnetic topper. Some come like this. If yours isn't, just stick a small rare-earth magnet to it
"Was able to do this without any modification. Should trip closed a little above 1/4 left and trip back open a little below 1/4. We'll see how it works in practice. I don't do automatic delivery so the tripping open again will be a lower indication unless I placed an order. The bobber is already a magnet on mine." -Jon Jenkins