<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span></span></div><div></div><div>Good points Alan.  I concur that grade as well as being fit for service are important.  All of my experience has been with one absorbent, SodaSorb HP.  This is the same absorbent that Phil has used for years.</div><div><br></div><div>As to taking my boat to this years PSUB convention, the answer is no unfortunately.  Nor will I be able to attend.  I though I was going to be able to make it and sent my registration fee into Jon but and had to back out because of a consulting job that has come up.</div><div><br></div><div>Take lots of pictures in Phil's toy shop!</div><div><br></div><div>Cliff</div><div><br><br><br><br></div><div><br>Cliff Redus<br>Redus Engineering<br>USA
 mobile:  830-931-1280<br>cliffordredus@sbcglobal.com </div><div><br></div>  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div dir="ltr"> <div class="hr" style="margin: 5px 0px; padding: 0px; border: 1px solid rgb(204, 204, 204); border-image: none; height: 0px; line-height: 0; font-size: 0px;" contenteditable="false" readonly="true"></div>  <font face="Arial" size="2"> <b><span style="font-weight: bold;">From:</span></b> Alan James via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, July 17, 2014 5:44 PM<br> <b><span style="font-weight:
 bold;">Subject:</span></b> Re: [PSUBS-MAILIST] O2 regulator<br> </font> </div> <div class="y_msg_container"><br><div id="yiv8085224405"><div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 10pt; background-color: rgb(255, 255, 255);"><div class="yiv8085224405"><span class="yiv8085224405">Cliff,</span></div><div class="yiv8085224405" style='color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13.33px; font-style: normal; background-color: transparent;'><span class="yiv8085224405">another factor in the equation is the grade of C02 absorbent.</span></div><div class="yiv8085224405" style='color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13.33px; font-style: normal; background-color: transparent;'><span class="yiv8085224405">Here
 is an article by Molecular products warning rebreather divers not to use medical grade absorbant.</span></div><div class="yiv8085224405" style="background-color: transparent;"><span class="yiv8085224405"><a class="yiv8085224405" href="http://www.molecularproducts.com/pdf/Use%20of%20medical%20grade%20Sofnolime%20in%20Diving%20Applications%20Jan%202010.pdf" target="_blank" rel="nofollow" shape="rect">http://www.molecularproducts.com/pdf/Use%20of%20medical%20grade%20Sofnolime%20in%20Diving%20Applications%20Jan%202010.pdf</a><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405" style='color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13.33px; font-style: normal; background-color: transparent;'>Molecular products who manufacture sofnolime, have a computer program for calculating the amount of flow you need to maintain</div><div class="yiv8085224405"
 style='color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13.33px; font-style: normal; background-color: transparent;'>C02 within certain levels, based on the internal volume of your
 hull. </div><div class="yiv8085224405">I contacted them ages ago with questions about their product & they seemed to enjoy using their computer & doing the calculations.</div><div class="yiv8085224405"><a class="yiv8085224405" href="http://www.molecularproducts.com/us/" target="_blank" rel="nofollow" shape="rect">http://www.molecularproducts.com/us/</a><br class="yiv8085224405" clear="none"></div><div class="yiv8085224405" style='color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 13.33px; font-style: normal; background-color: transparent;'>My link recently to EMT medical didn't work ( hate copying links on my Ipad) so here it is again.</div><div class="yiv8085224405" style="background-color: transparent;"><a class="yiv8085224405" href="http://www.emtmedicalco.com/REGULATORS-FLOWMETERS-FITTINGS_c63.htm" target="_blank" rel="nofollow"
 shape="rect">http://www.emtmedicalco.com/REGULATORS-FLOWMETERS-FITTINGS_c63.htm</a><br clear="none"></div><div class="yiv8085224405">  Are you taking the R300 up to Bellingham
 Cliff?</div><div class="yiv8085224405">Alan</div>  <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 10pt;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="qtdSeparateBR"><br><br></div><div class="yiv8085224405yqt3339220534" id="yiv8085224405yqt83159"><div class="yiv8085224405" dir="ltr"> <div class="hr" style="margin: 5px 0px; padding: 0px; border: 1px solid rgb(204, 204, 204); border-image: none; height: 0px; line-height: 0; font-size: 0px;" contenteditable="false" readonly="true"></div>  <font class="yiv8085224405" face="Arial" size="2"> <b class="yiv8085224405"><span class="yiv8085224405" style="font-weight: bold;">From:</span></b> Cliff Redus via Personal_Submersibles <personal_submersibles@psubs.org><br class="yiv8085224405" clear="none"> <b
 class="yiv8085224405"><span class="yiv8085224405" style="font-weight: bold;">To:</span></b> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br class="yiv8085224405" clear="none"> <b class="yiv8085224405"><span class="yiv8085224405" style="font-weight: bold;">Sent:</span></b> Friday, July 18, 2014 8:58 AM<br class="yiv8085224405" clear="none"> <b class="yiv8085224405"><span class="yiv8085224405" style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] O2 regulator<br class="yiv8085224405" clear="none"> </font> </div> <div class="yiv8085224405"><br class="yiv8085224405" clear="none"><div class="yiv8085224405" id="yiv8085224405"><div class="yiv8085224405"><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><div class="yiv8085224405"><span class="yiv8085224405">Slow
 but not to slow. You need to be able to pull the cabin volume through  the scrubber in a reasonable amount of time.  I would look for another squirrel cage blower but a smaller new one that is quite. The issue with a large  blower is that it can pull to much current.  ABS requires that the life support system has to function for 72 hours on the emergency battery bank only.  If the current is to high, you end up with good scrubbing but don't have the battery capacity to last the 72 hours.  If
 the blower is to small, you solve the current problem but you can't meet the 5000 ppm concentration constraint.</span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405"></div><div class="yiv8085224405"> </div><div class="yiv8085224405">Cliff</div> <div class="yiv8085224405"><br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"></div><div class="yiv8085224405"
 style="display: block;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405" id="yiv8085224405yqt61779"><div class="yiv8085224405" dir="ltr"> <font class="yiv8085224405" face="Arial" size="2"> On Thursday, July 17, 2014 3:44 PM, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br class="yiv8085224405" clear="none"> </font> </div>  <br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"> <div class="yiv8085224405"><div class="yiv8085224405" id="yiv8085224405"><div class="yiv8085224405"><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;
 background-color: rgb(255, 255, 255);"><div class="yiv8085224405"><span class="yiv8085224405">Cliff,</span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405">thanks' got it.  Just for interest, Gamma's original scrubber has a hug squirrel cage fan, like from a car heater.  The only problem is it is very noisy.  I was under the impression the air had to move slowly through the absorbent.</span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405">Hank</span></div> <div class="yiv8085224405"><br class="yiv8085224405" clear="none"><br
 class="yiv8085224405" clear="none"></div><div class="yiv8085224405" style="display: block;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405" id="yiv8085224405yqt68454"><div class="yiv8085224405" dir="ltr"> <font class="yiv8085224405" face="Arial" size="2"> On Thursday, July 17, 2014 4:04:55 PM, Cliff Redus via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br class="yiv8085224405" clear="none"> </font> </div>  <br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"> <div class="yiv8085224405"><div class="yiv8085224405" id="yiv8085224405"><div class="yiv8085224405"><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue,
 Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><div class="yiv8085224405"><span class="yiv8085224405">If you think of the filter as a cylinder, for an axial flow filter, the flow of the air
 through the filter is along the axis of the cylinder.  Flow comes in one end and out the other.  For radial flow filter, the flow radiates out
 perpendicular to the axis of the cylinder and there is a hollow inner space.  The inlet or exit is connected to this inner space.  </span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405">See picture</span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><a
 class="yiv8085224405" href="http://www.kleenwater.com/page.html?id=31" target="_blank" rel="nofollow" shape="rect">http://www.kleenwater.com/page.html?id=31</a></span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405">Weak fans are a problem for scrubbers from my experience.  One other point, I found that box style blower was better than axial fan as then push less flow but can generate higher
 head which is needed to push the air through the absorbent.</span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span></div><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; font-style: normal; background-color: transparent;"><span class="yiv8085224405">Cliff</span></div> <div class="yiv8085224405"><br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"></div><div class="yiv8085224405" style="display: block;"> <div class="yiv8085224405" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405"
 style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12pt;"> <div class="yiv8085224405" id="yiv8085224405yqt56156"><div class="yiv8085224405" dir="ltr"> <font class="yiv8085224405" face="Arial" size="2"> On Thursday, July 17, 2014 2:40 PM, Alan via Personal_Submersibles
 <personal_submersibles@psubs.org> wrote:<br class="yiv8085224405" clear="none"> </font> </div>  <br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"> <div class="yiv8085224405"><div class="yiv8085224405" id="yiv8085224405"><div class="yiv8085224405"><div class="yiv8085224405">Hi Hank,</div><div class="yiv8085224405">I've pasted this one before.</div><div class="yiv8085224405"><span class="yiv8085224405"><a class="yiv8085224405" href="http://emtmedicalco.com/REGULATORS-http://m.youtube.com/watch?v=kLtTOmvTqrk-FITTINGS_c63.htm" target="_blank" rel="nofollow" shape="rect">emtmedicalco.com/REGULATORS-http://m.youtube.com/watch?v=kLtTOmvTqrk-FITTINGS_c63.htm</a></span></div><div class="yiv8085224405"><span class="yiv8085224405">They are in the North West. They have a great selection of oxygen equipment, tanks &</span></div><div class="yiv8085224405"><span class="yiv8085224405">fittings on their site.</span></div><div
 class="yiv8085224405"><span class="yiv8085224405">Alan</span></div><div class="yiv8085224405"><span class="yiv8085224405"><br class="yiv8085224405" clear="none"></span><br class="yiv8085224405" clear="none"><span class="yiv8085224405">Sent from my iPad</span></div><div class="yiv8085224405" id="yiv8085224405yqt40189"><div class="yiv8085224405"><br class="yiv8085224405" clear="none">On 17/07/2014, at 7:55 am, hank pronk via Personal_Submersibles <<a class="yiv8085224405" href="mailto:personal_submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"></div><blockquote class="yiv8085224405" type="cite"><div class="yiv8085224405"><div class="yiv8085224405" style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;
 font-size: 12pt; background-color: rgb(255, 255, 255);"><div class="yiv8085224405">Hi All,</div><div class="yiv8085224405">I need to find a pediatric flow
 meter and regulator for Gamma.  Or is there something better?</div><div class="yiv8085224405">Hank</div></div></div></blockquote></div><blockquote class="yiv8085224405" type="cite"><div class="yiv8085224405"><span class="yiv8085224405">_______________________________________________</span><br class="yiv8085224405" clear="none"><span class="yiv8085224405">Personal_Submersibles mailing list</span><br class="yiv8085224405" clear="none"><span class="yiv8085224405"><a class="yiv8085224405" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br class="yiv8085224405" clear="none"><span class="yiv8085224405"><a class="yiv8085224405" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br
 class="yiv8085224405" clear="none"></div></blockquote></div></div><br class="yiv8085224405" clear="none"><div class="yiv8085224405" id="yiv8085224405yqt67908">_______________________________________________<br class="yiv8085224405" clear="none">Personal_Submersibles mailing list<br class="yiv8085224405" clear="none"><a class="yiv8085224405" href="mailto:Personal_Submersibles@psubs.org" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br class="yiv8085224405" clear="none"><a class="yiv8085224405" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" rel="nofollow" shape="rect">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br class="yiv8085224405" clear="none"></div><br class="yiv8085224405" clear="none"><br class="yiv8085224405" clear="none"></div></div>  </div> </div>  </div> </div></div></div><br class="yiv8085224405"
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