The style and approach of the cheeks
.Characteristics of the cheeks will drain the upper area. To allow water to flow into the canal water at the seashore. Then, when the sea level dropped so low over the water in the canal. Canal water will naturally flow into the sea.Now on to the water gradually flows to the flooding area is reduced. Finally, when the sea level was higher than the level in the canal. Thus closing the floodgates. The water flows down a one-way (one way flow)