Nice idea Niels, really! But needs place for the container, a tube will go to your mouth, your have to pay attention on the blowing, you canīt talk to someone around you, you will look like side-blowing whale :-)) Normally I need my breath for paddling efficient, but - why not? The valve system and the output you would achieve, might be like this small Lendal footrest-pump, often used in marathon-racing kayak, where every little bit of water destroys the efficient speed. How long do you might need, to empty a complete kayak? I think, there might be 2 big problems. You have to blow quite heavy if you want to empty the boat fastly, then you need a huge amount of breath and pressure. Or you blow more slowly, then it takes (maybe up to) hours to empty the kayak. Just an idea, which hits me this moment. What if one gots a tank with pre-pressed air? Or a little air-pressure pump which might be placed in the rear compartment? Or you install another type of electric pump in the rear compartment, so the pump needs no more the direct contact to the water. But then there have to run 2 tubes through the bulkhead, but the electric parts are no longer in touch with water. (Safer) Hey, just read Nicks mail. Another idea basing on the self-bailer-systems and the old water jet vaccum pumps (often used in natural scientist labs). A tube: one end fixed the bottom of the kayak (direct contact the bilge), the tube runs outside with a check valve and ends under (!!!) the outside water. You fill the tube completely with water first and when you paddle and water runs along the outer end of the tube, the water will hold a little bit below atmospheric pressure, so the water from inside the kayak will be pumped out, by YOUR speed through the water. It only works, when your boat makes speed. Just like the self bailers, but here, you wonīt have to drill a hole in the bootom of the kayak! I think, I have to try it by next chance on myself. just a few thoughts bye Jochen G. *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue Nov 27 2001 - 00:20:45 PST
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