Hi Joe,
The lake in the Pocono's you are referring to is
called Wallenpapac. It's actually a man made lake that had it's start as a
dam for electrical generation. I'm about 45 minuets from it.
I had my sub in it a few times. It's like diving in mud
though. Visibility is very bad all the year around but it's close to home and
has a very nice boat ramp. In it's deepest, it's about 50 feet.
There are roomers about the town that was once
there being still under water but I'm sure anything that would clog the water
intakes was cleared out during construction. Since it's a lake with no
channels to anywhere, the only things submerged in it are abandon cars and maybe
a scuttled boat or two. On the surface, it's a nice lake for boating
though.
There are other smaller lakes around here, Scranton
area. Some are quite clear and with depths from 20 to 40 feet but most
don't have access ramps that go deep enough to launch a sub.
I have been up to New York State, at the Finger
Lakes several times. Some of the launches up there offer adequate access
and some don't. I dove in Seneca lake a few times. That's where I
did my deep water test. The water is very clear and the bottom maxes out
at 633 feet. The rest of the Finger Lakes aren't as deep, but still clear
and way deeper then anything in Pennsylvania.
Since the Finger Lakes connect to the Eire Canal,
they have had larger boat and barge traffic running through them and do have
some wrecks, but I haven't visited any of them yet. The topography up
there is interesting also. From the north and south all the
lakes taper toward the center, but from east to west are shelved
with cliffs that make a fishfinder go from twenty feet two hundred feet in the
blink of an eye.
Dan H.
----- Original Message -----
Sent: Friday, January 13, 2006 8:10
AM
Subject: [PSUBS-MAILIST] Fresh water
lakes
Dan H wrote:
"I haven't dived my sub any deeper then I could
escape from yet but soon will be"
I am curious Dan, your registration numbers
indicate you are in PA, Your pictures and comment about no tidal flow indicate
lakes. I've been in PA years ago, are you in the Pocono's and how deep do the
lakes get there? What's there? Topography, wrecks, archeological sites? Just
curious about fresh water enviroments.
Joe
From: "Dan H." <jmachine@adelphia.net> Reply-To:
personal_submersibles@psubs.org To:
<personal_submersibles@psubs.org> Subject: Re:
[PSUBS-MAILIST] Life Support Date: Thu, 12 Jan 2006 23:18:05
-0500
Ross,
I haven't dived my sub any deeper then I could
escape from yet but soon will be. I'll be installing O2 and a scrubber
before I do.
Your correct, I couldn't last long trapped
inside.
Dan H.
----- Original Message -----
Sent: Thursday, January 12, 2006 5:05
PM
Subject: Re: [PSUBS-MAILIST] Life
Support
Dan,
I think I would be afraid to dive with no scrubber or oxygen.
What would happen if I get tangled on something and can't get back
up? By the time anyone realizes I am in trouble I could
suffocate.
Rick,
As of yet, I don't have a scrubber or O2
supply in my sub. For now, I never stay down with two people in
the sub over twenty minutes. That's my rule. I set a timer
and return to the surface when it times out. So in actually, it's
about thirty minutes from closing the hatch to opening it again.
There is a pretty good cushion as I do it. Besides, my wife is
more comfortable with me touching base on a schedule like that.
(she muttered something about the! life insurance not being paid up or
something) I had considered an O2 tank when building my sub.
It would be nice to extend my bottom time.
Kittredge used to carry a 02 tank inside
his sub, and then after the space capsule disaster, he moved it outside
and piped the O2 in through a hull penetration to a valve in the
sub. I was debating when building my hull whether to put the
through hull in or not. My thoughts were and still are; a tank
inside the hull is not leaking or it would be empty. A tank
outside of the hull would have to be turned on before putting the sub in
the water. The valve inside the hull may be leaking a bit and I
may not know.
Unless the tank or valve ruptures, I don't
see the danger of it being inside the sub. I know it's not leaki!
ng O2 at the time I'm in the sub if it has sat in there for a month or
so already. If I want to extend my bottom time with supplemental
O2 and discover my tank is empty I have to surface and go back to my
twenty minute schedule. I could carry two smaller medical
tanks.
Any thoughts?
Dan H.
----- Original Message -----
Sent: Wednesday, January 11, 2006
9:41 PM
Subject: Re: [PSUBS-MAILIST] Life
Support
harry
The normal human
consumes about one cubic foot of oxygen per hour and will feel no
effects of oxygen deprivation at an o2 level above 18% the osha level
is 19.5% minimum. air contains 21 % o2. So dependent upon the size of
your cabin you need to run the numbers to see how much o2 you will
have.
A co2 scrubbber can be
made from a piece of plastic pipe with screens at the end to hold the
absorbent. mount a fan at the top and for under 100$ you have! a co2
scrubber.
one caution when using
o2 addition it does make things burn rapidly. and abs says that
o2 tank most be mounted outside.
fire and
o2
the biggest problem
using pure o2 is the risk of fire in the system piping. high velocity
o2 can ignite lots of things . needle valves are used here. Trust me
on this i turned a rebreather in to a flame thrower the hard
way.
most valves can be ordered o2 clean and
should be, the packing and grease needs to be o2 compatible. yes o2
needs a special grease. piping will need to be cleaned prior to use. I
have h! ad success with hot soapy water wash, repeat until clean then
hot water rinse and cap lines until installed.
hope this helps
rick m
----- Original Message -----
Sent: Wednesday, Janu! ary 11,
2006 2:51 PM
Subject: [PSUBS-MAILIST] Life
Support
Hello
folks,
It has been a long time
since my last post but I still have questions!
Is it correct to think
that in an enclosed space, like your pressure hull you will suffer
from the negative effects of excess CO2 before you suffer from a
lack of O2? What I am get! ting at is, could you upgrade a simple
sub with no life support by adding just a scrubber to extend your
usable bottom time or would you only gain a little bit of extra time
before the O2 would need replenishing as well.
What sort of equipment
is used by those of you who do replenish the O2? It is sufficient to
have an O2 tank, conten gauge, regulator (and gauge?), and a flow
meter (with a separate O2 sensor and meter). Or does the equipment
need to be more sophisticated than this.
What do you do about
?o! xygen cleaning? Do you have to just concentrate on the O2 supply
kit or all of the equipment within the sub?
How many of you provide
yourselves with CO2, O2, and internal pressure gauges to monitor the
environment but do not fit additional life
support.
Thanks in advanced
guys,
Harry
Yahoo! Photos ? Showcase holiday pictures in hardcover Photo
Books. You design it and we?ll bind
it!
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