<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2">Alan,          Seems like if the purge valve ever got knocked accidentally you could loose your air.  </FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2">Brian</FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT><BR><SPAN style="font-size: 10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-size: 10pt;">From: Alan via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size: 10pt;">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size: 10pt;">Subject: Re: [PSUBS-MAILIST] Purge Valve</SPAN><BR><SPAN style="font-size: 10pt;">Date: Fri, 29 Mar 2019 20:14:38 +1300</SPAN><BR><BR><DIV style="font-size: 10pt;"></DIV><DIV style="font-size: 10pt;">Thanks David,</DIV><DIV style="font-size: 10pt;">Still thinking through some of this stuff lol.</DIV><DIV style="font-size: 10pt;">Trying to make the systems bullet proof.</DIV><DIV style="font-size: 10pt;">Alan</DIV><DIV style="font-size: 10pt;"><BR>On 29/03/2019, at 5:53 PM, David Colombo via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> wrote:<BR><BR></DIV><BLOCKQUOTE style="font-size: 10pt;"><DIV><DIV dir="auto">Hi Alan, the yoke that is attached to my hp air tank has a bleeder valve as part of the yoke, then a shut off valve prior to entering the pressure hull. Procedure for tank change out, shut valve, open bleed valve, then remove yoke.  I dont have the same type of setup for my o2 tanks though as there is no hidden pressure zone.<DIV dir="auto">David</DIV></DIV><BR><DIV><DIV dir="ltr">On Thu, Mar 28, 2019, 9:06 PM Alan via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> wrote:<BR></DIV><BLOCKQUOTE style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<BR>
Just wondering if people use / have an external valve to purge air / O2 from the <BR>
system to enable the removal of the first stage yoke from the tank.<BR>
With a dive set up you just press the second stage purge valve.<BR>
Alan<BR>
<BR>
<BR>
<BR>
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