I have a Twisted Pair that controls the starting and stopping of our well pump. At the storage tank, we have a simple level switch that is connected to the telco twisted pair. It was installed 40+ years ago and has been abandoned by the current telco. The tanks are some 800 feet from the well. The wires from the switch are connected to a NIC (I think that what it is) that has some type of fuse. I have a picture of it below.
The NIC got wet in the last rain and the system quit working. I have it covered now, but I would like to replace it with a more state of the art unit.
My question is, are these fuses (if they are fuses) needed, I don’t think there is any current in the system, I think it only relies on conductivity of the switch. At the well, there is a relay that controlled by the twisted pair that triggers the motor.
Does anyone have any insight into what I should do? For now, I want to leave it alone, but I want to have a “PLAN B”.
Carl
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