<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hank, </div><div>the documents I gave links to on compensating systems, & seals for</div><div>oil compensated deep sea systems, mentioned this.</div><div> It depends on what type of seal you are using & the orientation of them,</div><div>as you can damage seals by putting a pressure on the wrong side.</div><div>Have had those documents printed & bound:)</div><div>Alan<br><br>Sent from my iPad</div><div><br>On 23/03/2016, at 8:56 am, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym18_1_1458675892754_7351">Guys, I was wondering if anyone has looked at vacuum filling thruster motors. I saw a tv program about building ROV's and that is what they did. We could put the thruster motors in our pressure chambers full of oil and suck the air out. That may be the solution to that pesky bit of water that gets in.</div><div id="yui_3_16_0_ym18_1_1458675892754_7351">Hank</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>