<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top">Hi Alan,<br/><br/>That's similar to a Kingston isn't it? That shape would assure complete venting, one would have to be assured of fail safe reliability in whatever was used. I would like a normally closed fail safe mode in whatever style best assures sealing.<br/><br/>Joe<br/><br/><a href="http://overview.mail.yahoo.com?.src=iOS"><br/><br/>Sent from Yahoo Mail for iPad</a></td></tr></table>            <div id="_origMsg_">
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                                <span style="font-weight:bold">From:</span>
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                            Alan <alanlindsayjames@yahoo.com>;                            <br>
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                                <span style="font-weight:bold">To:</span>
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                            Personal Submersibles General Discussion <personal_submersibles@psubs.org>;                                                                                                     <br>
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                                <span style="font-weight:bold">Subject:</span>
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                            Re: [PSUBS-MAILIST] Flush Mount Valves in MBT's                            <br>
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                                <span style="font-weight:bold">Sent:</span>
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                            Sun, Dec 8, 2013 7:10:19 PM                            <br>
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                                        <td valign="top"><div>Hi Joe,</div><div>While thinking about the ballast valve, it occurred to me that</div><div>the drain pop up plugs found in modern bathrooms, are very</div><div>similar to what we want.</div><div><span style="font-size:15px;line-height:19px;white-space:nowrap;"><a rel="nofollow" shape="rect" target="_blank" href="https://www.google.co.nz/search?client=safari&hl=en-gb&biw=768&bih=928&tbm=isch&sa=1&ei=47ukUvT-EsqhkwWt04DoAQ&q=drain+pop+up+waste&oq=drain+pop+up+waste&gs_l=img.3...46028.57398.0.58014.39.28.0.2.2.0.324.3866.8j5j4j5.22.0....0...1c.1.32.img..27.12.2132.cLok805IcCc">https://www.google.co.nz/search?client=safari&hl=en-gb&biw=768&bih=928&tbm=isch&sa=1&ei=47ukUvT-EsqhkwWt04DoAQ&q=drain+pop+up+waste&oq=drain+pop+up+waste&gs_l=img.3...46028.57398.0.58014.39.28.0.2.2.0.324.3866.8j5j4j5.22.0....0...1c.1.32.img..27.12.2132.cLok805IcCc</a></span><br
 clear="none">Hope that link came out OK. It was an image search on DRAIN POP UP WASTE</div><div>They would need to work upside down for our application, so they would be flush on the</div><div>inside of the ballast tank (eliminating an air trap) but extend a bit above the ballast tank.</div><div>Some models look like you could just stick an air line straight on to them, & with a spring </div><div>In them, they would work.</div><div>There may be some model that is ideal.</div><div>Alan<br clear="none">Sent from my iPad</div><div><br clear="none">On 8/12/2013, at 2:09 PM, Joe Perkel <<a rel="nofollow" shape="rect" ymailto="mailto:josephperkel@yahoo.com" target="_blank" href="javascript:return">josephperkel@yahoo.com</a>> wrote:<br clear="none"><br clear="none"></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:14pt;"><div><font size="3" face="Calibri">I need a little help understanding the installation of
remotely operated pneumatic valves in soft tanks. I’ve been looking at various
products on the Net, and from what I see, there doesn’t seem to be an off the
shelf remotely operated valve that would install flush and fully vent the tank.
What I’m looking for is a flush mount and a clean installation which eliminates
the exterior tubing routed to the conning tower.</font></div><font size="3" face="Times New Roman"></font><div style="margin:0in 0in 10pt;"><font size="3" face="Calibri">Am I missing a valve type or installation that would
accomplish this?</font></div><div style="margin:0in 0in 10pt;"><font size="3" face="Calibri">Thanks</font></div><div style="margin:0in 0in 10pt;"><font size="3" face="Calibri">Joewith </font><div class="yqt4830789314" id="yqtfd24493"></div></div><div class="yqt4830789314" id="yqtfd09550"><div><font size="3" face="Times New Roman">

</font></div></div></div></div></blockquote><div class="yqt4830789314" id="yqtfd29146"><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="javascript:return">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></blockquote></div></td>
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