On the pump, red is +, and black is ground.
Turn on the switch for the pump, probably in the control panel over the couch, and see which wire has power. Use a test light. Make sure that wire does not have power when the pump switch is off, then connect it to the red wire on the pump. Find a ground, and connect it. Ignore the other wires for now, you'll figure out what they go to later in your project. Just don't bury them, you may need them.
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.