Had a line (my own) get wrapped around both props this weekend, every time we would dive to try a untangle it, we would only have a few seconds of time under the boat. With the rough water this weekend and a large swim platform trying to get to the two inboards was a little difficult needless to say. Does anyone know of a short time underwater breathing device that would last about 3 to five minutes. Something portable and small. Ended up cutting the line off and broke one knife and lost two. What a pain in the A??.