[PSUBS-MAILIST] Scuba Tank Purchase Questions

[Steve McQueen via Personal_Submersibles]

Thanks again everyone.

Just to close this thread out I purchased 2 Luxfer aluminum 80s.  They come
with what they call a Pro Valve which includes the the adapter that allows
yoke or DIN connections.

While my current hose connections on the sub are yoke I will be eventually
changing them to DIN.  Seems like a more robust connection.

Steve

On Fri, Feb 21, 2020 at 5:40 AM James Frankland via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Steve.
>
> Great name.  I had to think about it for a moment though... :)  Make sure
> you pack a baseball glove and ball in, just incase you get stuck in
> solitary...
>
> Ive actually got the exact model of bike he jumps over the fence with at
> the end.
>
> Anyway, like everyone has said, DIN.  The ones you get here nearly always
> have a screw in adapter for yoke fitting.
> Regards
> James
>
>
>
> On Thu, 20 Feb 2020 at 16:57, Steve McQueen via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Cliff, thanks. Good to hear about actual field issues. I will reconsider
>> my thoughts accordingly.  I have completed my contribution for Pisces VI
>> and have refocused on finishing my project. Having your own compressor is a
>> nice advantage. Are your MBT HP tanks aluminum or steel?
>>
>>  My K-250 is named "The Great Escape" (get it?).
>>
>> Steve
>>
>>
>>
>>
>>
>>
>> On Thu, Feb 20, 2020 at 11:36 AM Cliff Redus via Personal_Submersibles <
>> personal_submersibles at psubs.org> wrote:
>>
>>> Steve, if it were me, I would go with DIN fitting on scuba tanks.  About
>>> 2 years after I built my boat I had an O-ring blow while I was on the boat
>>> ramp ready to launch. If this would have happened during a dive, I would
>>> not have been unable to blow my MBTs by myself.  I would have had to have
>>> divers to manually inflate my MBT with open vent ports.  My experience is
>>> that most scuba shops can fill scuba tanks with DIN connections.  After the
>>> incident, I switched my MBT HP air supply to DIN values and have never had
>>> any trouble since then.  Also, last year I purchased a portable scuba
>>> compressor that came with an adapter to let you fill Yoke or DIN valves.
>>> Also this compressor is capable of filling a steel HP tank if I want to.
>>> To me, the real benefit of steel tanks with DIN connections is the ability
>>> to fill to a higher pressure.  If you don't need the higher pressure, then
>>> aluminum are lower cost.
>>>
>>> We are all looking forward to your sea trials for your lime green K250.
>>> I love the paint job on your boat.  Has she got a name yet?  I am surprised
>>> you have had any time to work on your boat with the PLC work you been doing
>>> for Scott on his Pieces 6.
>>>
>>> Looking forward to catching up with you this year at one of the psub
>>> events.
>>>
>>> Best
>>>
>>>
>>>
>>> On Thursday, February 20, 2020, 09:54:59 AM CST, Steve McQueen via
>>> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>>>
>>>
>>> All, getting ready to buy 2 scuba tanks for my K250. Just wanted to see
>>> if anyone had an opinion of my thoughts?
>>>
>>> 1) Choosing steel vs. aluminum (prefer its weight/buoyancy
>>> characteristics)
>>> 2) While I was wanting as much air volume as possible I decided against
>>> a HP version as I have heard most places won't (can't?) fill to that
>>> capacity anyway
>>> 3) Deciding on standard pressure steel 80s with K-valve (yoke fitting)
>>>
>>> I've been watching for a while (including Black Friday) but it seems
>>> there isn't much mark up and these tanks don't appear to go on sale.
>>>
>>> Thanks,
>>> Steve
>>>
>>>
>>>
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