<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1426271014528_6212"><span>Hank.</span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6214"><span id="yui_3_16_0_1_1426271014528_6213">I believe Sean answered that question & said</span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6216"><span id="yui_3_16_0_1_1426271014528_6215">the air in the belows would also cool so wouldn't</span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6218"><span id="yui_3_16_0_1_1426271014528_6217">expand in relation to the cabin air & so wouldn't</span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6218"><span id="yui_3_16_0_1_1426271014528_6236">feed in more oxygen. </span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6218"><span id="yui_3_16_0_1_1426271014528_6238">I am pretty </span>sure they are metal belows, so would transfer</div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6221"><span>the cabin temperature.</span></div><div dir="ltr" id="yui_3_16_0_1_1426271014528_6243"><span>Alan</span></div><br> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1426271014528_6115"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1426271014528_6114"> <div dir="ltr" id="yui_3_16_0_1_1426271014528_6113"> <hr size="1"> <font size="2" face="Arial"> <b><span style="font-weight:bold;">From:</span></b> hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> personal_submersibles@psubs.org <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, March 14, 2015 4:12 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] bellows add<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1426271014528_6256"><br>I think we talked about this before, but I can't remember the outcome. How does a bellows add (O2) system deal with or compensate for negative pressure caused by temperature change. The temperature falls for a long time causing negative pressure when I dive in a cold lake. Is it just a matter of letting the O2 level increase? It seems to take very little hp air to correct it. <br>Hank<br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org" id="yui_3_16_0_1_1426271014528_6257">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank" id="yui_3_16_0_1_1426271014528_6258">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></body></html>