Breathing underwater

Google 'hookas', been a few threads on them. Basicly deck mounted air pumps with a tube to the diver. Pumps are diaphram, so oil free and can be powered by electric motors or small petrol ones. The latter have to be very carefully set up to avoid any risk of CO from the exhaust getting to the pump inlet.
 
DownWest said:
Google 'hookas', been a few threads on them. Basicly deck mounted air pumps with a tube to the diver. Pumps are diaphram, so oil free and can be powered by electric motors or small petrol ones. The latter have to be very carefully set up to avoid any risk of CO from the exhaust getting to the pump inlet.
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#12 also known as power dive .
 
langstonelayabout said:
Good move Batman! A friend used to have a hand pump to pump up his PCP (pre-charged pneumatic) air rifle. You can buy these pumps as an alternative to changing your PCP air rifle from a dive tank.

The reason why the pumps didn't catch on is because by the time you've filled the (small) tank with air, not only has the quarry got away but you're still huffing and puffing for breath and you can't hold your rifle steady enough to hit anything...

For scrubbing and diving I'd suggest you get properly trained, buy used kit and wear ear plugs to keep the nasties out.
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For diving you dont want to wear ear plugs
 
Because of the replies I am now interested in the 12volt Hookas system. I guess that will definitely need training if only to ensure that I use the system properly to ensure I do not re-breath what I exhale. I will have to find out where in the Ionion I can do a course. Just to clean the bottom of the boat. I will not be diving for sponges just yet.
 
BurnitBlue said:
Thanks for the reminder. I can imagine it is because of the same reason ears pop when flying. I recall during my RAF service it was not a good idea to fly if the flu (or common cold) blocked the ears.
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Interesting fact is that the pressure change in an airline flight is about 20% change in air pressure. In SCUBA diving the change is 100% for every 10 metres of depth. So to dive to a max of about 60 metres you have 6 times atmospheric air pressure. The main difference is that in SCUBA you can to some extent set the rate you descend or ascend but you can't in an airliner. ol'will
 
William_H said:
Interesting fact is that the pressure change in an airline flight is about 20% change in air pressure. In SCUBA diving the change is 100% for every 10 metres of depth. So to dive to a max of about 60 metres you have 6 times atmospheric air pressure. The main difference is that in SCUBA you can to some extent set the rate you descend or ascend but you can't in an airliner. ol'will
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Its not a problem , my power dive has two pipe one from the compresser 7mts to the tank and one from the tank to the regulate 10 mts , so in all I can only go down 10 mts max and that's if the tank is right above me .
for cleaning the boat and getting to a trap anchor , ideal .
 
BurnitBlue said:
Because of the replies I am now interested in the 12volt Hookas system. I guess that will definitely need training if only to ensure that I use the system properly to ensure I do not re-breath what I exhale. I will have to find out where in the Ionion I can do a course. Just to clean the bottom of the boat. I will not be diving for sponges just yet.
Click to expand...

i think you wont get one from the UK , H&S and all that crap , mine came from Holland or you can buy them from down under , maybe Ebay com.
it wasn't cheap but it paid for it self 10 times over in the nine years I had mine .
 
This compressor works without oil.
I dive with that many and many hours and no problems.
Not very difficult to make a filter if you want but for cleaning a hull sometimes, not necessary at my humble opinion.
 
DinghyMan said:
Given how expensive filtration units are for proper dive compressor the air from a compressor like that wouldn't be anywhere near safe breathing quality - do an oil mist test on it and see the results
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I think it's an oiless compressor but I certainly wouldn't use it without a fine particulate filter anyway.
 
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