Dishwasher Green Tip By Ann Fickenwirth Published: Jun 24, 2009 at 11:03 AM PDT Last Updated: Jun 24, 2009 at 11:03 AM PDT Share this story Comments print email Always run the dishwasher when it’s completely full. You’ll save up to 20 gallons of water per load, or 7,300 gallons a year. Share this story Comments print email