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Old 28 April 2011, 17:18   #31
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But if enough nitrogen had leaked out of the tubes to fill up the deck space, the tubes would be flat, allowing all that heavier than air N2 to run out onto the floor/sea. This would create a partial vacuum on the deck which would then fill up with luverrly O2 rich air.
Your move (probably to the bilges)
I know what your getting at and we could go all night (not in that way though) I wouldn't fill tubes with nitrogen because it has the potential to kill you if you get a lung full where as air doesn't.
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Old 28 April 2011, 17:23   #32
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I know what your getting at and we could go all night (not in that way though) I wouldn't fill tubes with nitrogen because it has the potential to kill you if you get a lung full where as air doesn't.
Ok, we'll agree to differ.
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Old 28 April 2011, 17:31   #33
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Ok, we'll agree to differ.
We'll agree that if I ever need a nitrogen enriched atmosphere checking your going in first!

PS, if you ever need a Tiffy give me a PM!
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Old 28 April 2011, 17:42   #34
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??
http://en.wikipedia.org/wiki/Lighter_than_air#Nitrogen
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Old 28 April 2011, 17:49   #35
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We'll agree that if I ever need a nitrogen enriched atmosphere checking your going in first!

PS, if you ever need a Tiffy give me a PM!
Tiffy?? That's a new one on me.
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Old 28 April 2011, 17:58   #36
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Errrm, there is something else that no one has mentioned about nitrogen....

Nitrogen molecules are larger than oxygen molecules therefore in theory if your tubes had a slow leak then with 100% nitogen, they would deflate slower...well at least 20-21% slower anyway!

Is this a good reason to take your rib down to your local BOC gas center?.....errrm probably not, at least i wont be bothering anyway.

While we're at it, why not hydrogen....lighter than helium and if your outboard should run out of petrol when out at sea, you could always deflate a compartment or two just to get you home....simples (just got to remember not to smoke when aboard)

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Old 28 April 2011, 21:52   #37
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Errrm, there is something else that no one has mentioned about nitrogen....

Nitrogen molecules are larger than oxygen molecules therefore in theory if your tubes had a slow leak then with 100% nitogen, they would deflate slower...well at least 20-21% slower anyway!
Only if the leak were small enough to only allow O2 molecules through. More likely, it allows both N2 and O2 through at a small rate of flow, and your leak would be exactly the same, but it would cost more to refill the tubes.

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Old 29 April 2011, 03:21   #38
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Only if the leak were small enough to only allow O2 molecules through. More likely, it allows both N2 and O2 through at a small rate of flow, and your leak would be exactly the same, but it would cost more to refill the tubes.

jky
Errrm, actually it doesn't work that way,
The nitrogen molecules will rub together when they try to pass through the 'leak' causing a bottle neck effect thus reducing flow . Think of it like opening a packet of cereal and pouring it into a bowl... Although each flake is much smaller then the packet opening occasionally they all jam up and you have to stick your finger in there to help them out. The flow through the leak must take into account pressure in the tubes, temperature of the gas and more importantly in this case, the type if gas.....

Geeez, my original post was intended to be tounge in cheek and not taken so seriously hence the Hydrogen comment!

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Old 29 April 2011, 05:16   #39
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Any thoughts on how to eliminate mold from rubber(hypalon)?

Golden Cowry,

https://profiles.google.com/101053888109376129346/about
check out SCUBA products for cleaning and keeping mould out of the BCD(buoyancy control device) some bcd's are used to be able to breath from in an emergency
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Old 30 April 2011, 11:23   #40
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Nitrogen = death

Just to put this to rest, no, a lungful of nitrogen will not harm, less kill you.

At last, I've been able to post on here about something I actually know about. Now would anyone like to know what 10 pints of Cornish Knocker does to your liver?
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