Dishwasher and method of controlling the same

A method of controlling a dishwasher having a storage tank, which is provided at a lower side of a body of the dishwasher to receive used wash water from a sump unit and to accommodate the received used wash water, a pump configured to pump the wash water accommodated in the storage tank to the sump unit, and an air brake having a first hole communicating with a washing tub of the body and positioned at a lower portion of the air brake, and a second hole of the air brake communicating with an upper portion of the storage tank and positioned at an upper portion of the air brake, the method comprising:

• determining whether a rinsing process is completed;
• stopping an operation of a washing pump;
• supplying the used wash water accommodated in the sump unit to the storage tank by opening a valve;
• determining whether a water level of the used wash water in the storage tank reaches a predetermined water level;
• and
• closing the valve.

A dishwasher comprising:

• a body provided with a washing tub in which dishware is disposed to be washed;
• a sump unit provided at a lower side of the body, and configured to accommodate wash water and pump the accommodated wash water;
• a spray nozzle configured to receive the wash water from the sump unit and spray the wash water to the washing tub;
• a storage tank provided at a lateral side of the body and configured to accommodate the wash water after being used, which is supplied from the sump unit;
• a water supply pipe connecting the sump unit to the storage tank;
• a pump connected to the water supply pipe and configured to pump the wash water being accommodated in the sump unit to the storage tank;
• and
• an air brake having a first hole communicating with the washing tub and a second hole communicating with an upper portion of the storage tank,
• wherein the first hole is positioned at a lower portion of the air brake and the second hole is positioned at an upper portion of the air brake.