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<div dir="ltr" data-setdir="false">Rick, I did quite a bit of testing of the Life Support system on the R300. During one test sequence, I sat in the R300 with the Scrubber turned off to see how long it would take to trigger 5000 ppm alarm. It was 8 minutes. Then, after turning the scrubber back on, it took 9 minutes for the CO2 level to drop back to 1500 ppm. I would be glad to send you a copy of the report documenting the life support system testing over the years. Send me your email offline to cliffordredus@sbcglobal.net.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Best</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br><span></span><br></div><div><br></div>
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On Wednesday, May 28, 2025 at 04:23:58 PM CDT, Rick Patton via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="ydp875d600eyiv0669127682"><div><div dir="ltr">Does anyone remember who sat in their sub with the hatch closed to see how long they could stay before the Co2 PPM became dangerous?<div><br clear="none"></div><div>Rick</div></div><br clear="none"><div id="ydp875d600eyiv0669127682yqt13466" class="ydp875d600eyiv0669127682yqt3280380399"><div class="ydp875d600eyiv0669127682gmail_quote ydp875d600eyiv0669127682gmail_quote_container"><div dir="ltr" class="ydp875d600eyiv0669127682gmail_attr">On Fri, May 23, 2025 at 9:22 AM Rick Patton <<a shape="rect" href="mailto:satwelder@gmail.com" rel="nofollow" target="_blank">satwelder@gmail.com</a>> wrote:<br clear="none"></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" class="ydp875d600eyiv0669127682gmail_quote"><div dir="ltr">Someone posted a while ago that they sat or layed in their sub until the PPM got dangerous.<div>Can't remember who that was? Wanted to get more information from them if possible.</div><div>Thanks</div><div><br clear="none"></div><div>Rick<br clear="none"><div><br clear="none"></div></div></div>
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