If you own a flexible LP hose such as Miflex brand, you might enjoy the comfort over a standard rubber breathing hose. The increased flexibility may offer less jaw stress and better hose routing. But, if you use these hoses, I want you to try something next time you are in the water. A soft flexible hose crimped or snagged can almost completely cut off airflow. I caution students with these hoses to understand that if the hose gets snagged in your equipment and bent in half, or if it is caught on a rock while you swim in cave, then you may not be able to breathe until you free it. Most of my students are surprised to learn about this issue. I’ve seen it happen in drills in cave diving class – a student passes off a long hose and the team begins to swim out of the cave. The long hose gets snagged on a rock and bends until the recipient of the hose realizes that they are not only caught, but also can’t breathe. If you own these hoses be sure you understand the possible risks and coach your buddy on the symptoms so they can prepare for the worst if it should happen.
