"L" == LaBomba182 writes:

Subject: Cheap And Nasty Snorkel extension
From: Ole-Hjalmar Kristensen

"GA" == Glenn Ashmore writes:

GA It would be extremely dificult if not impossible to breath through
a
GA hose at surface pressure if your lungs get more than 2 or 3 feet
under
GA water. The difference at 3' is only about 1.5 pounds per square inch
GA but the water is pressing on a couple thousand square inches of
lung
GA surface.

The real problem is the "dead volume" in your snorkel. You will be
inhaling your own breath over and over again.

L No, the real problem is just as Glenn has stated.

L Capt. Bill

Maybe. People have tried longer snorkels before and died from it.
That's a real problem in my book.

--
Strange attractors stole my wife