This buoy is primarily intended to signal the diver during the ascent, when it is not attached to an ascent cable and has no surface buoy.
This equipment requires special care in its use, and may cause embarrassment to the less experienced diver. Therefore, the CMAS One Star Diver should only use it as a signal buoy after it has reached the surface.
The porch buoy is usually red or orange and cylindrical in shape, with a length between 150cm and 220cm and about 15cm in diameter, and has attached a cable six meters long.
The set is carried in a small bag that can be carried in the vest pocket.
The buoy is opened at one end, through which the diver introduces air, placing the regulator nozzle underneath and in continuous flow. The buoy’s mouth has a lead waist to help maintain the upright position where the cable is attached. Once filled, the buoy is dropped to the surface where it emerges almost in its entirety. The diver keeps the cable in tension so that the buoy does not lie down, not to lose air and to be more visible.
Currently there are landing buoys whose construction eliminates the danger of losing air if they lie down.
Maintenance of this equipment should be rinsed with fresh water, dry and store in a protected place.