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Hi Phil.
I finally got a chance to get back with you on
replacing my scuba regulator equalization system for my battery pod and motor
housing.
Thanks for advising me about this. Could you tell
me exactly what valves I could replace my scuba regulator with, where I can get
them,
exactly what they are called, and how I utilize
them? I need one for equalizing my battery pod and one for equalizing my
minnkota motor housing.
Thanks very much,
Kindest Regards,
Bill Akins.
----- Original Message -----
Sent: Sunday, January 30, 2005 5:24
PM
Subject: Re: [PSUBS-MAILIST] For Bill A.,
recharging battery pods, Vacuums and unknown gas loss.
Dear Bill:
Regarding battery pod vacuum: We ( Nuytco) don't use Hydro-caps on
our
current sub battery pods. We did use them for many years on several
early
subs such as Sea-Otter, Sea-Urchin, and various
stand-alone
manip/jet-pump/ cutting systems/etc., with their
own,independant, power
supply. As Vance says, we most often had a
vacuum on surfacing. So, if you
must use caps, plan on a
vacuum..
Of far greater concern,
safety-wise and IMHO, is your proposed use
of a scuba reg for pod
compensation. No matter how you cut it, by
definition, at some point in the
system you have nothing between the
interior of your pod and the water but
1/32nd of an inch of rubber. If you
forget to turn on your comp air and
descend, or comp airline is blocked, or
comp air is exhausted and you dont
realize it and go deeper - the pods will
flood and you will go deeper mucho
rapido or,and, when you hit bottom, you
will be stuck there like a limpet!
Don't use a standard scuba reg with with
an unmodified diaphragm and/or
diaphragm retainer - or a mushroom or
flutter-valve exhaust. Do use a
positive pressure reg and
positive-over-ambient pressure exhaust, so that
any leaks are gas out, not
water in. Do also provide pod water alarms and
the usual pod sensors,
ground-fault indicators, breakers, etc. Overkill?
Think about flooded pods
or flooded significant volumer external housings
dragging you down . . .
not a pleasant thought!
Regards
Phil Nuytten
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