<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Brian,</div><div>that would work to 30ft at the most. </div><div>If the volume in the reservoir was 1 litre & the volume in the hose going</div><div>down in to the water was half a litre, then at 30ft the volume would be compressed </div><div>to half. So the reservoir needs another half a litre to achieve this. And that </div><div>would mean that the half a litre in the hose would move in to the reservoir &</div><div>the hose would fill up with water.</div><div>The main problem is you haven't worked out how much the oil might expand.</div><div>If you did that you would have a ball park figure to work on.</div><div>You may find that a hose without a reservoir would suffice.</div><div>Or hose with small bladder on the end.</div><div>Cheers Alan</div><div><br></div><div><br>On 28/03/2020, at 8:20 AM, Brian Cox 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="font-family:Arial, sans-serif; font-size:10pt;"><font size="2">Here it is right side up hopefully </font></div></div></blockquote><blockquote type="cite"><div><IMGr_1522.jpg></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>