The document summarizes an inquiry project conducted by Maddison, Geena, and Rachael to compare water usage from town supply versus tank water. They recorded water usage over two tests from each source under normal and water-saving conditions. Their results showed that town supply water usage was higher and was reduced more when attempting to save water. Total water usage across both tests was cut down by 395 litres when saving water. They recommend ways to reduce water usage such as shorter showers, placing a brick in toilets, and only running full loads of laundry.