| 摘要 |
According to the present invention, a washing machine comprises: a tub in which washing water is accommodated; a drum rotatably disposed in the tub; a chamber connected to the tub through a plurality of connection holes to allow the washing water to flow thereinto from the tub through at least one among the connection holes and discharge the washing water flown thereinto back to the tub through at least one different connection hole among the connection holes; and a water quality sensing unit to sense water quality of the washing water in the chamber. |
