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Float switch auto pump turn-off
I know this is super-paranoid, but I'm kind of surprised that I'm (seemingly) the only person to want to try this:
In my refugium/sump where my sump pump is, I want to install a float switch that will turn the pump off when the water level gets too low. I've bought a float switch already which can either close or open a circuit when I want the pump off.
Unfortunately, the only way I have of turning the pump on and off is by plugging/unplugging it. What I need is something that I can plug into the wall, and then plug my pump into that will take the input from my float switch turn on/off the pump. I went to Radio Shack and the guy there sold me some kind of "relay" and a power supply for it. I have a master's degree in electrical and computer engineering and I haven't the slightest idea what he wanted me to do with it, and I'm kind of worried about doing it that way anyways because I don't want to fry my switch with too much current.
Has anyone ever dealt with this before, or might have some help? Thanks,
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