I've been searching around trying to find something to sense water and turn a 110v pump off.
Basically I have a saltwater aquarium with a protein skimmer, every now and then the adjustment get's off and has a possibility to overflow. I was thinking of having a water sensor in the collection cup near the top. When the water level rises in the cup, the sensor will trigger something to cut power to the pump.
I've found circuits for sensing water so that part isn't really a problem, I understand the various ways to go about that. I need an idea on how I could shut off power to a 110v AC device. Do I need a relay or is there something to use for this? Don't really need a circuit, just an idea of what parts I could use.
Would it be something like using some type of relay to break a leg of the AC line?
Thanks