<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1494191084121_5174"><span>Rick,</span></div><div id="yui_3_16_0_ym19_1_1494191084121_4975"><span id="yui_3_16_0_ym19_1_1494191084121_4974">Valid points for sure, but in my case I have small bottles instead of one large bottle. Also the regulator fits directly to the tank, so the risk is so minimal. It comes down to our own personal experiences and comfort level. If I have a leak, the alarm will scream before the pressure is an issue. If you are real concerned about over pressures, pick up a small 12 v compressor and plumb it into a small tank to get rid of the pressure. That is one of the benefits of Gamma's internal HP compressor.</span></div><div id="yui_3_16_0_ym19_1_1494191084121_4975"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Sunday, May 7, 2017 11:33 AM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv1428118203"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv1428118203yui_3_16_0_ym19_1_1494175066843_6205">Hi All,</div><div id="yiv1428118203yui_3_16_0_ym19_1_1494175066843_6205" dir="ltr">I have purchased a few new medical O2 bottles for Elementary 3000. I got a bit worried after the O2 piping and penetrating discussion. I will have internal O2 supply and I admit I had some reservations because the big guys don't do that. Then! this morning I was watching a show on TV about a Saudi Prince flying around in his beautiful two seater glider. Low and behold, there it was, behind the pilot, a O2 bottle. If airplanes can carry O2 tanks inside the plane, why not a submarine? </div><div id="yiv1428118203yui_3_16_0_ym19_1_1494175066843_6205" dir="ltr">Hank</div></div></div></div>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>