Hi Myles.
I would definately consider one for an ambient, but
no way for a 1 atm. There was some discussion here a long time ago
about
how the tank's holding internal propane pressure
did not necessarily cross over to keeping pressure out the same way. I can't
recall
what was said though, but I remember it was
discussed. Some guys have built them (1 atm) and I have seen some for sale made
from propane
tanks. But I'd want a thicker hull for a 1 atm if
it was me. I wouldn't trust a propane tank hull, even with reinforcement rings.
I mean, if you are going to build a 1 atm with all
the trouble it takes....you might as well make it
where it can go relatively deep and build it with a thick pressure
hull
and get down 600 feet or more. Most
of the good non picked over wrecks are deeper than scuba depths because the
divers have already picked most of them over.
Most wrecks (okay not all) at scuba depths have
already been found too and there isn't much to discover new unless you go beyond
scuba depths.
But for an ambient? Like I said I think it would be
great for that for all the reasons you listed. I think it would be very durable
for an ambient and if
you are still contemplating building an ambient,
that would be an inexpensive way to go.
Bill.
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