<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Cliff,</div><div>12.5hrs in the pool in your submarine! That's one way to get some</div><div>peace & quiet. </div><div>I presume you did this in several separate dives.</div><div>How long could you stay in before it was getting uncomfortable?</div><div>Any worse than a seat on an airplane?</div><div>Would you design it any different from an ergonomics perspective?</div><div>Alan</div><div><br></div><div><br>On 31/05/2019, at 8:14 AM, Cliff Redus via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><!--[if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--><div class="ydpd2a3cb29yahoo-style-wrap" style=""><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"></div>
<div style="">Today, I was getting ready to reorder SodaSorb HP for the August 5-9 Flathead Lake Expedition and found from my supplier, Amron International, that W.R. Grace and Co. was bought out by another company and the new company has stopped manufacturing SodaSorb HP. Amron guys are recommending a replacement product <span style="font-family: Arial, Helvetica, sans-serif; font-size: 15px;">Draeger 6737818 DiveSorb® Pro Carbon Dioxide Absorbents 16.8 kg - 37 lb</span><span style="font-family: times new roman, new york, times, serif; font-size: 16px;"><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;"><br> . </span></span><a href="https://www.amronintl.com/draeger-divesorb-pro-16-8kg-6737818.html" rel="nofollow" target="_blank" class="enhancr_card_0211009404" style="font-family: times new roman, new york, times, serif; font-size: 16px;">Draeger DiveSorb® Pro Carbon Dioxide Absorbents 16.8 kg - 37 lb 6737818</a> at a similar price, $107/37 lbs.</div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div id="ydp6cae2bfaenhancr_card_0211009404" class="ydp6cae2bfayahoo-link-enhancr-card ydp6cae2bfaymail-preserve-class ydp6cae2bfaymail-preserve-style" style="font-family: Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif; font-size: 16px; max-width: 400px;" data-url="https://www.amronintl.com/draeger-divesorb-pro-16-8kg-6737818.html" data-type="YENHANCER" data-size="MEDIUM" contenteditable="false"><a href="https://www.amronintl.com/draeger-divesorb-pro-16-8kg-6737818.html" style="text-decoration:none !important;color:#000 !important" class="ydp6cae2bfayahoo-enhancr-cardlink" rel="nofollow" target="_blank"><table border="0" class="ydp6cae2bfacard-wrapper ydp6cae2bfayahoo-ignore-table" cellpadding="0" cellspacing="0" style="max-width:400px"><tbody><tr><td width="400"><table border="0" class="ydp6cae2bfacard ydp6cae2bfayahoo-ignore-table" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224, 228, 233);border-radius:2px"><tbody><tr><td class="ydp6cae2bfacard-primary-image-cell" background="https://s.yimg.com/lo/api/res/1.2/tmV5FbFZkU4BI41dBiToZw--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://www.amronintl.com/skin/frontend/default/Amron/images/amron-logo-196w.png.cf.jpg" bgcolor="#000000" valign="top" height="175" style="background-color: rgb(0, 0, 0); background-size: cover; position: relative; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:0;left:0;"><v:fill type="frame" color="#000000" src="https://s.yimg.com/lo/api/res/1.2/tmV5FbFZkU4BI41dBiToZw--~A/Zmk9ZmlsbDt3PTQwMDtoPTIwMDthcHBpZD1pZXh0cmFjdA--/https://www.amronintl.com/skin/frontend/default/Amron/images/amron-logo-196w.png.cf.jpg"/></v:rect><![endif]--><table border="0" class="ydp6cae2bfacard-overlay-container-table ydp6cae2bfayahoo-ignore-table" cellpadding="0" cellspacing="0" style="width:100%"><tbody><tr><td class="ydp6cae2bfacard-overlay-cell" background="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png" bgcolor="transparent" valign="top" style="background-color: transparent; border-radius: 2px 2px 0px 0px; min-height: 175px;"><!--[if gte mso 9]><v:rect fill="true" stroke="false" style="width:396px;height:175px;position:absolute;top:-18px;left:0;"><v:fill type="pattern" color="#000000" src="https://s.yimg.com/cv/ae/nq/storm/assets/enhancrV21/1/enhancr_gradient-400x175.png"/><v:textbox inset="0,0,20px,0"><![endif]--><table border="0" class="ydp6cae2bfayahoo-ignore-table" height="175" style="width: 100%; min-height: 175px;"><tbody><tr><td class="ydp6cae2bfacard-richInfo2" style="text-align:left;padding:15px 0 0 15px;vertical-align:top"><span style="color:#fff;font-size:16px;font-weight:600">$107.15</span></td><td class="ydp6cae2bfacard-actions" style="text-align:right;padding:15px 15px 0 0;vertical-align:top"><div class="ydp6cae2bfacard-share-container"></div></td></tr></tbody></table><!--[if gte mso 9]></v:textbox></v:rect><![endif]--></td></tr></tbody></table></td></tr><tr><td><table border="0" align="center" class="ydp6cae2bfacard-info ydp6cae2bfayahoo-ignore-table" cellpadding="0" cellspacing="0" style="background:#fff;position:relative;z-index:2;width:100%;max-width:400px;border-radius:0 0 2px 2px;border-top:1px solid rgb(224, 228, 233)"><tbody><tr><td style="background-color:#ffffff;padding:16px 0 16px 12px;vertical-align:top;border-radius:0 0 0 2px"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif;border-radius:0 0 2px 0"><h2 class="ydp6cae2bfacard-title" style="font-size: 14px; line-height: 19px; margin: 0px 0px 6px; font-family: Helvetica Neue, Segoe UI, Helvetica, Arial, sans-serif; color: rgb(38, 40, 42);">Draeger DiveSorb® Pro Carbon Dioxide Absorbents 16.8 kg - 37 lb 6737818</h2><p class="ydp6cae2bfacard-description" style="font-size: 12px; line-height: 16px; margin: 0px; color: rgb(151, 155, 167);">Draeger DiveSorb® Pro Carbon Dioxide Absorbents 16.8 kg - 37 lb 6737818</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;">Found a US Navy report written in 1987 were they compared different CO2 absorbents in their MK 15 re-breather. The abstract from the report is given below. <span><a href="http://dspace.rubicon-foundation.org/xmlui/bitstream/handle/123456789/4853/NEDU_1987_11.pdf?sequence=1" rel="nofollow" target="_blank">http://dspace.rubicon-foundation.org/xmlui/bitstream/handle/123456789/4853/NEDU_1987_11.pdf?sequence=1</a></span></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br><div><div>"A comparative study of Draegersorb, LimePak and HP Sodasorb carbon dioxide absorbents within</div><div>the MK 15 Mod 0 Underwater Breathing Apparatus (MK 15) was performed at the Navy Experimental</div><div>Diving U n i t . Draegersorb and LimePak appeared t o be marginally more e f f e c t i v e than HP Sodasorb.</div><div>However, t h e i r usefulness to extend the MK 15 canister duration may be l i m i t e d because of the</div><div>wide v a r i a b i l i t y of time to reach the a r b i t r a r i l y determined canister breakthrough of 3.8 mHg</div><div>CO 0.5% SEV) though the oxygen consumption rates were similar, V02 rates were similar, V02</div><div>1 mi. The polypropylene moisture absorbent pads are a suitable replacement pad for the</div><div>MK 15 and can be reused."</div></div></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;">For those of you that were using SodaSorb HP, what are switching to? My inclination is to go with the <span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;">Draeger Dive Sorb Pro. Does anyone know of a supplier that still has an inventory of SodaSorbHP 4-8 mesh?</span></span></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;">I wish I would have know this one week ago. I just completed a 12.5 hour pool dive to determine how long my initial scrubber load of 3.5 lbs of SodaSorb HP would last before breakthrough. </div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;">Cliff</div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 16px;"><br></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>