<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><DIV>Hank, I have a port that is dedicated for outside O2 but was thinking of doing a inside tank for the time being . But it seems reasonable to have one inside for reasons like getting damaged outside the sub.</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] First Stage Regulator for O2 service Questions<BR>Date: Mon, 25 Dec 2017 22:15:00 +0000 (UTC)<BR><BR></DIV><DIV style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><DIV></DIV>
<DIV>Brian,</DIV><DIV>Yes Gamma has the O2 supply inside the sub, it used to be both inside and outside when I got it. I know it against the rules but I prefer the O2 onboard for safety reasons. I think there is less risk of a tank rupture than a O2 line failure. If your stuck down there, I think the O2 and absorbent should be inside the sub. Elementary is set up for external, and for weight reasons probably will stay that way.</DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Monday, December 25, 2017, 1:42:33 PM MST, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV style="font-family: Arial, sans-serif; font-size: 10pt;"><DIV>Hank, You have O2 tank inside sub?</DIV><DIV> </DIV><DIV>Brian<BR><BR>--- personal_submersibles@psubs.org wrote:<BR><BR>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><BR>To: Steve McQueen via Personal_Submersibles <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] First Stage Regulator for O2 service Questions<BR>Date: Mon, 25 Dec 2017 18:38:48 +0000 (UTC)<BR><BR></DIV><DIV style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><DIV></DIV>
<DIV>Steve,</DIV><DIV>I am not using an external regulator outside the hull, I don't see the need. Gamma used to have external O2 bottles and that system had the regulator inside the hull also.</DIV><DIV>Hank</DIV><DIV><BR></DIV>
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On Monday, December 25, 2017, 10:50:55 AM MST, Steve McQueen via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV><DIV><DIV>All, I am purchasing the system components for my K-250’s O2 system. I am not a SCUBA diver so I lack some experience with regulators. I am considering sealed/balanced options for the first stage regulator (it will create an intermediate pressure downstream of the O2 tank (located external of the hull). These get pricey and I don’t really want to overspend for options I do not need (sealed vs. not, balanced vs. unbalanced, O2 ready vs. needing cleaned).</DIV></DIV><DIV> </DIV></DIV><DIV>A couple of questions:</DIV></DIV><OL type="1" style="margin-top: 0in;" start="1"><LI style="margin-left: 0in;">They sell regulators that are already suitable for 100% O2 use. How difficult to clean one that is not O2 ready?</LI><LI style="margin-left: 0in;">The pediatric flow regulator (located in the hull) can directly handle the O2 tank pressure so I am wondering why we use the first stage regulators at all.</LI><OL type="a" style="margin-top: 0in;" start="1"><LI style="margin-left: 0in;">I assume to remove as many HP leak sources from within the hull especially since it is 100% O2 (safety).</LI></OL></OL><DIV> </DIV></DIV><DIV>Thoughts/recommendations?</DIV></DIV><DIV> </DIV></DIV><DIV>Steve</DIV></DIV><DIV> </DIV></DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR>
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