[PSUBS-MAILIST] CO2

[Cliff Redus via Personal_Submersibles]

 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 at sbcglobal.net.
Best



    On Wednesday, May 28, 2025 at 04:23:58 PM CDT, Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 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?
Rick
On Fri, May 23, 2025 at 9:22 AM Rick Patton <satwelder at gmail.com> wrote:

Someone posted a while ago that they sat or layed in their sub until the PPM got dangerous.Can't remember who that was? Wanted to get more information from them if possible.Thanks
Rick


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