Rich Keller
Contributor
The best hose if you are using just the hose would be a Gates 3/4 hose, the same as used in a commercial umbilical. You can also use an oxygen hose from any welding supply but you should tape a life line to it to prevent it from breaking and kinking. I use a 50' oxygen hose with life line for kayak diving, I leave the tank in the kayak and let it carry the weight as I drag the kayak behind me.