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I'm trying to wire up a 110v water pump to the Danger Den Pump Relay switch, the goal being the pump goes off and on with the computer. All diagrams and instructions I have found show 3 wires coming from the pump, black, white and green. I understand and have done that in the past. It wortks great. However, the current pump I'm working with has only 2 wires, no colored sheathing and no difference in blade size at the plug. Where do these 2 wires go? Any info would be greatly appreciated.