<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1426112015002_6154" dir="ltr"><span>Hi Adam,</span></div><div id="yui_3_16_0_1_1426112015002_6154" dir="ltr"><span id="yui_3_16_0_1_1426112015002_6256">that would require a rebreather style set up to do that.</span></div><div id="yui_3_16_0_1_1426112015002_6154" dir="ltr">I believe they had a rebreather back up on James Camerons sub.</div><div id="yui_3_16_0_1_1426112015002_6154" dir="ltr">A bit expensive & complicated.</div><div id="yui_3_16_0_1_1426112015002_6154" dir="ltr">Alan</div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1426112015002_6761"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1426112015002_6760"> <div dir="ltr" id="yui_3_16_0_1_1426112015002_6759"> <hr size="1" id="yui_3_16_0_1_1426112015002_6758"> <font size="2" face="Arial" id="yui_3_16_0_1_1426112015002_7160"> <b><span style="font-weight:bold;">From:</span></b> Adam Lawrence via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> 'Personal Submersibles General Discussion' <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, March 12, 2015 8:27 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Ballast air<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1426112015002_7452"><br>For emergencies, wouldn’t you use a full-face mask connected to a CO2<br clear="none">scrubber and air filter and pure oxygen, all on the inhale side...<br clear="none"><br clear="none">Compressed scuba air would increase cabin pressure and make things<br clear="none">uncomfortable...<br clear="none"><br clear="none">-----Original Message-----<br clear="none">From: Personal_Submersibles [mailto:<a shape="rect" ymailto="mailto:personal_submersibles-bounces@psubs.org" href="mailto:personal_submersibles-bounces@psubs.org">personal_submersibles-bounces@psubs.org</a>]<br clear="none">On Behalf Of hank pronk via Personal_Submersibles<br clear="none">Sent: Wednesday, March 11, 2015 10:26 AM<br clear="none">To: Personal Submersibles General Discussion<br clear="none">Subject: Re: [PSUBS-MAILIST] Ballast air<br clear="none"><br clear="none"><br clear="none">Brian,<br clear="none">I don't mean oxygen, I mean regular scuba air. I have and am sure all<br clear="none">other subs have scuba breathing apparatus for emergencies like smoke. I<br clear="none">take air from my ballast supply for that purpose. If your ballast air is<br clear="none">Nitrogen then you will need an extra tank for emergency breathing. <br clear="none">Hank --------------------------------------------<br clear="none">On Wed, 3/11/15, Brian Cox via Personal_Submersibles<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"> Subject: Re: [PSUBS-MAILIST] Ballast air<br clear="none"> To: "Personal Submersibles General Discussion"<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Wednesday, March 11, 2015, 10:18 AM<br clear="none"> <br clear="none"> Yes, my oxygen will be a separate<br clear="none"> tank, or tanks.<br clear="none"> <br clear="none"> Brian<br clear="none"> <br clear="none"> --- <a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br clear="none"> wrote:<br clear="none"> <br clear="none"> From: hank pronk via Personal_Submersibles<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> To: Personal Submersibles General Discussion<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Subject: Re: [PSUBS-MAILIST] Ballast air<br clear="none"> Date: Wed, 11 Mar 2015 05:37:11 -0700<br clear="none"> <br clear="none"> Brian,<br clear="none"> You must be planning to have a separate tank for emergency air for<br clear="none">breathing, in case of fire etc.<br clear="none"> Hank<br clear="none"> --------------------------------------------<br clear="none"> On Wed, 3/11/15, Brian Cox via Personal_Submersibles<br clear="none"><<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> wrote:<br clear="none"> <br clear="none"> Subject: [PSUBS-MAILIST] Ballast air<br clear="none"> To: "PSubs" <<a shape="rect" ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br clear="none"> Received: Wednesday, March 11, 2015, 2:50 AM<br clear="none"> <br clear="none"> I'm planning on having<br clear="none"> 3 - 300cu ft air cylinders for my ballast supply air.<br clear="none"> I noticed that if I get them filled with nitrogen it is<br clear="none"> cheaper than getting breathing or industrial air<br clear="none"> ! That is, until I get my own<br clear="none"> compressor. 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