The last step was to plug in the timer, program it, and I was done! I used an outdoor-rated electronic timer as opposed to a mechanical one so I could precisely adjust the time the water runs. I have begun by having the water come on at 4pm each day and run for 10 minutes. As we move into the hotter part of the summer I will probably have to lengthen this time.
Now that I'm out of the manual watering business, guess I'll have to find something else to do.