not sure how to annotate pictures, the green wire from the relay goes out to any digital pin (mine goes to pin 2), the red wire on the top part of the relay goes to 5v. the red wire across is soldered to one of the sensor wires.

The black wire goes out to ground on the arduino, the 10k resistor goes over and is connected to a green wire (show) that connects to one of the analog inputs (mine goes to A0) and underneath is soldered to the other sensor wire.

The red wire on the bottom of the relay goes out to one of the parts of the pump wire as he illustrates above, the other wire goes into the single pin of the relay (which is on the ver right of the picture)

let me know if you need me to clarify anything. I know nothing about circuits or anything, just did some googling and playing around on a bread board to figure this all out.