Mechanism of maintaining balance of a washing machine during operation thereof. A lower balancer is coupled to a lower portion of the inner tub of the washing machine. The lower balancer has a receptacle for temporarily retaining washing water. During rotation of the inner tub, the retained water moves laterally within the lower balancer and presses an “L shaped” balancing side wall member in the direction of centrifugal force. Once the rotation stops, retained water drains automatically from the lower balancer.