<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1495705212336_2633"><span>Thanks for the update Brian,</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2607" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2606">hope the test goes well.</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2604" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2605">I am not an expert on vacuums but I believe the most external pressure you could possibly get on</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2657" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2659">your flexible hose (created by your vacuum) at </span><span id="yui_3_16_0_ym19_1_1495705212336_2658">sea level is 14.7psi (atmospheric pressure).</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2668" dir="ltr"><span>I</span><span id="yui_3_16_0_ym19_1_1495705212336_2666"> did some calculations on clear plastic tube one time & found it could take more than I thought;</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2744" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2743">somewhere around 100psi. However as soon as you squeeze or kink that hose out of round it</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2746" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2745">becomes very weak.</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2748" dir="ltr"><span id="yui_3_16_0_ym19_1_1495705212336_2747">Look forward to the test report.</span></div><div id="yui_3_16_0_ym19_1_1495705212336_2751" dir="ltr"><span>Alan</span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1495705212336_2549"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1495705212336_2516" style="display: block;"> <div id="yui_3_16_0_ym19_1_1495705212336_2515" style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1495705212336_2514" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_ym19_1_1495705212336_2547" dir="ltr"> <font id="yui_3_16_0_ym19_1_1495705212336_2548" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_ym19_1_1495705212336_2550"> <b><span style="font-weight: bold;">From:</span></b> Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br> <b><span style="font-weight: bold;">To:</span></b> PSubs <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, May 25, 2017 11:31 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> [PSUBS-MAILIST] Still waiting<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1495705212336_2513"><br><div id="yiv3748508989"><div id="yui_3_16_0_ym19_1_1495705212336_2531" style="font-family: Arial, sans-serif; font-size: 10pt;"><div id="yui_3_16_0_ym19_1_1495705212336_2530">Hi All,</div><div id="yui_3_16_0_ym19_1_1495705212336_2756"> Still waiting to do another test. Been taking care of a lot of details. I wanted to have a vacuum line that I could hook up to my portable compressor and I wasn't sure if the flexible hose would collapse or not, but it doesn't seem to be an issue. Also had a couple of issues with my motor pod. I had a unnecessary concentric pipe arrangement that was not sealing properly and realized I can just weld it. This first motor pod, being the first prototype I had some extra fudge factor elements involved to help me get things aligned properly. Now I have a better handle on what I need to do for the fabrication process. Also had to locate another big truck to tow me down there to the harbor. And I decided to make extra bars of lead, in case I'm not heavy enough. </div><div id="yui_3_16_0_ym19_1_1495705212336_2757"> </div><div>Brian</div></div></div>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>