I think your talking about a third lunghttp://www.boatersworld.com/product/478551088.htmThe Digger said:There is a snokel set up on line with a 12 volt battery and you can go 6 to 10 feet under water for up to 2 hrs.
Look up on line Sea Breath or Power Snorkel, Still costs some bucks.
Two minutes is plenty of air to reach the surface. Use M/F quick release on your hoses especially with regulator. That's in case your air hose becomes fouled and you need to surface. Easier to reach back and disconnect then try to unscrew the connection, (That sends chills down my spine).
Mount the entire unit inside a donut tube mount and add a new 20 inch truck tire. Add a Diver's Flag and you are in business.
Mr. Peabody said:I am going to be getting skuba lessons this spring. How long does air tank last vwayne ?
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Well, with a normal size "90" tank, regular diving at depths , air can last from 30-50 minutes depending on your breathing habits. Im usually on the shorter end, as I am a major air hog. I never have got used to the idea of conserving air. When I want a big swig, I take it. When doing shallow water, and staying fairly stationary, like detectin, you can make one last for an hour and a half sometimes. Good luck on lessons. I got it in 2004, and have never looked back. I like ocean, rivers, lakes, wherever.
Mr. Peabody said:Photoflash said:You could try something real low tech such as an extra long hose of the same diameter or a little larger than the upright tube of your snorkel. Just slip it over the snorkel tube and clamp it on.
Attach the intake end of the hose to something to keep it high enough out of the water to avoid flooding the tube. Not sure how easy it would be to breathe through a non pressurized hose, but might be worth a try. Very cheap way to approach the problem.
I've built a snuba and it works, but have not used it enough to see if it is worth messing around with.
I'm certified SCUBA but sometimes the hassle of suiting and tanking up is not a lot of fun.
This is bad Idea. According to my research, human breath about two to three liters. As you exhale you exhale co2, if hose is long more co2 is stored at end of breath in such hose. If hose too long all co2 is stored in hose and soon you re-breathing only what you exhale which runs out of o2 and kills you with excess co2 which quickens breathing rate.
Mr. Peabody said:Don't try to make lake with shovel and hands, use proper equipment for job. Even if lessons are expensive better to pay for lessons and scuba gear then go at it with less than what you need or you won't achieve what you are trying to achieve.