When a natural disaster hits, such as the recent Superstorm Sandy, many utilities are knocked out in residential areas. Electricity is the most common service to go down, but what happens less often is water service being disrupted. It's nothing short of remarkable that many places, urban and rural, are able to keep water flowing to and from our homes 24 hours a day, seven days a week, 365 days a year and during all manner of weather and seasons.