2 automatic rapid drain system in transom. Placement in the bottom of the floor on the right and left side of the transom. Regardless of whether the boat tilts a little, water may flow out of the boat immediately. As the floor is higher up, no water flows in during normal handling. From a safety point of view, this is an optimal solution regardless of whether you drive hard, leave the boat and it rains and it flows out, when towing and a wave strikes, the water flows out. In addition, easy to clean the inside of the boat.