[Hugh R]

One Unit is 748 gallons or 100 cubic feet, which is how our meters are measured and how we are billed. I was having a little fun with her since she was the one starting with the math. The previous homeowner never bothered to bill us. I told her if it was an issue we'd compensate them for the water. My wild guess is, like Mark said $15-$20/month.

Its a good thing that her hubby is a movie grip and not an accountant.