Diving

mattnj said:
cant belive you are all still banging on about this :-)

all it has done for me is confirmed to me why i gave up diving about 5years ago...(never did more than about 50 dives anyway at "open water" level)

there was so much banging on about how dangerous it was and how i was going to die due to physics it just got boring, and made it no "fun"...i was only really interested in a few meters depth to check out the sealife and mess about....

....i think all the "dive masters" get so caught up in there 80m+ trimix pitch black, freezing cold super scary (and stupid if you ask me) diving that it messes up their heads, and they go into autopilot banging on about how incredibly dangerous it is at any depth....

BORING!!!!
Click to expand...

So stop reading the thread?
 
misterg said:
I would be interested in what you have to say, so please post rather than PMing.

Please make sure you've resolved the confusion between force and hydrostatic pressure though....
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Andy,
When I wrote that I'd PM Matt, this thread was purely in it's infancy!
I had no idea there'd be such a reaction to accepting the dangers of breathing ambient pressure (of the water) air underwater and it would continue for 139 posts and the 3000 odd views!

Unfortunatley my week has not allowed me to do the write up I'd planned, but I think the point has been made and most people that have read this threasd will now understand it's better to get some "basic" training than not.

As for my confusion between force and hydrostatic pressure.....not sure where you've got that idea from, I totally understand, see my post #24 on page 3.

Agian thanks to all for raising the profile of this subject, keep safe in/on the water.
 
mitchc said:
Andy,
When I wrote that I'd PM Matt, this thread was purely in it's infancy!
I had no idea there'd be such a reaction to accepting the dangers of breathing ambient pressure (of the water) air underwater and it would continue for 139 posts and the 3000 odd views!

Unfortunatley my week has not allowed me to do the write up I'd planned, but I think the point has been made and most people that have read this threasd will now understand it's better to get some "basic" training than not.

As for my confusion between force and hydrostatic pressure.....not sure where you've got that idea from, I totally understand, see my post #24 on page 3.

Agian thanks to all for raising the profile of this subject, keep safe in/on the water.
Click to expand...

A good post. Sensible and balanced, and a good place to end.

Or not........? :D
 
mattnj said:
the "dive masters" banging on about physics and certain death is boring, not the thread, the thread is great....
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Actually, the 'certain death' point is worth mentioning. The BSAC used to publich figures on diving incidents and fatalities. We used to get a bulletin, but they stopped doing it. The last few years they did it, there were usually about 10 fatalities a year, form an estimated 1.5 million dives. I remember that they included incidents such as a guy having a herat attack taking his diving gear out of his car.

I've always felt that the saftey record was at least partly due to the excellent education and training the BSAC administered.

I have no idea what the figures are like now, and BSAC are not the force they once were.
 
Sooooo....., after all that, and I haven't read the whole thing, could you careen the boat, is it tender enough? Not ashore, but via halyards/strongpoints etc. Even a moderate angle of heel could make much of the flat bottom accessible enough to work from a dinghy, secured fore and aft, using a pole sander, with abrasive pad of your choice

found here:

http://www.axminster.co.uk/-searchpole sander_pg1/

Of course, some buoyancy under the pad would help keep it tight to the hull.

Not familiar with your boat, but I imagine you could lead two warps from, say, the port side deck round under the hull and away to stbd to a strongpoint or anchor (refer to previous threads for the best anchor for this!). Then haul the masthead down to port.
Apologies if I'm talking, or writing, through my hat or even sundry parts of my anatomy. Often do.
 
Blimey, OP here

The monster lives. I've been away sailing for a couple of days, 200 miles covered, singlehanded, in a very high performance boat, which still needs a scrub. Fantastic

Some facinating stuff here, but I question the relevance of much of it.

Despite both public and private warnings, tmrw I shall have another go at hull cleaning, if you don't hear from me how it went then the doomsayers were right: I should have paid the £150 and had the boat lifted and pressure washed. (Although nobody actually said that, is everyone a tight-wad on this forum?)

(runs for cover as 30 people scream don't do it)
 
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