<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_1417569321685_2931"><span id="yui_3_16_0_1_1417569321685_2930">Brian,</span></div><div dir="ltr" id="yui_3_16_0_1_1417569321685_2929"><span id="yui_3_16_0_1_1417569321685_2928">the "Deep Worker" uses 80 duromer.</span></div><div dir="ltr" id="yui_3_16_0_1_1417569321685_2927"><span id="yui_3_16_0_1_1417569321685_2926">Here is the Parker o-ring selector pdf link.</span></div><div dir="ltr" id="yui_3_16_0_1_1417569321685_2932"><span id="yui_3_16_0_1_1417569321685_2938"><a href="http://www.parker.com/literature/ORD%205700%20Parker_O-Ring_Handbook.pdf" id="yui_3_16_0_1_1417569321685_2937">www.parker.com/literature/ORD%205700%20Parker_O-Ring_Handbook.pdf</a><br></span></div><div dir="ltr" id="yui_3_16_0_1_1417569321685_2932">Alan</div><br>  <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1417569321685_2920"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1417569321685_2919"> <div dir="ltr" id="yui_3_16_0_1_1417569321685_2924"> <hr size="1">  <font size="2" face="Arial" id="yui_3_16_0_1_1417569321685_2925"> <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> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, December 3, 2014 10:47 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [PSUBS-MAILIST] Gamma hatch<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1417569321685_2918"><br>Does anyone know if a durometer of 70 would suffice for a hatch o ring?<br><br>Brian <br><br>--- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" id="yui_3_16_0_1_1417569321685_2923">personal_submersibles@psubs.org</a> wrote:<br><br>From: hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" id="yui_3_16_0_1_1417569321685_2922">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org" id="yui_3_16_0_1_1417569321685_2921">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>Date: Mon, 1 Dec 2014 13:18:17 -0800<br><br>Brian,<br>I know that piece is pricy, yikes, that is why I use 516-70 then laminate 1/16 ss to that.  I am to cheap to buy the ss ring. :-) Yes the ss tube is for my cue ball arm.<br>Hank<br>--------------------------------------------<br>On Mon, 12/1/14, Brian Cox via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] Gamma hatch<br> To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Received: Monday, December 1, 2014, 2:23 PM<br> <br> The stainless seems to do all kinds<br> of crazy stuff when welded, Hopefully there's enough meat on<br> there to deal with any warp-age, clamping or tacking to a<br> flat piece of plate may also be an option.  I'll have<br> to take it to a shop that has a big enough lathe to handle<br> it, I've already talked to them about it. That ring was<br> quite costly !<br> <br> Brian<br> <br>  <br> <br> --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br> wrote:-<br> <br> From: hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Subject: Re: [PSUBS-MAILIST] Gamma hatch<br> Date: Mon, 1 Dec 2014 05:04:04 -0800<br> <br> Brian,<br> I have to agree about feeling better with the ring in the<br> middle.  At the same time, I feel better if the CT is<br> also in the middle and the hatch dome is in the<br> middle.  This way all the force from the hatch is in a<br> strait line down to the hull.  When I welded my<br> K350  ring (not ss) it warped just under 1/8in.  I<br> have to assume the designer allowed for that and started<br> with a heavier ring than required.  I never use a ss<br> ring, so can't say how it will react.  I would assume<br> it will warp at least 1/8 inch maybe more.  Your<br> starting with 1/2 inch material, what will you end up<br> with?  Will it be enough?  I would consider making<br> a steel ring, then bolt the ss ring to it.  I am<br> assuming the ss ring is simply for corrosion<br> resistance.  I would run that idea by an engineer of<br> coarse.  <br> Maybe your welders have a technique to reduce warp age.<br> Do you have a lathe big enough to machine this?<br> Hank <br> --------------------------------------------<br> On Sun, 11/30/14, Brian Cox via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> wrote:<br> <br>  Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>  To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>  Received: Sunday, November 30, 2014, 11:32 PM<br>  <br>  Hank,<br>         I'm sort of leaning back<br>  towards putting everything in the middle again.  For<br>  some reason the wider the hatch ring the better it makes<br> me<br>  feel, not sure why that is, maybe just more surface area<br> to<br>  be in contact.  Theoretically if your two mating pieces<br>  are perfectly flat you wouldn't even need an o ring ! <br>  Also, my welder wants me to put it in the middle.<br>  <br>  Brian<br>  <br>  --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>  wrote:<br>  <br>  From: hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>  To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>  Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>  Date: Sun, 30 Nov 2014 17:51:28 -0800<br>  <br>  <br>  Brian,<br>  If the hatch dome ends in the center it would.  Did you<br>  notice how narrow the land is on Gamma, it is like 3/4<br>  inch.  The hatch ring is the same, I was surprised to<br>  see that.<br>  Hank--------------------------------------------<br>  On Sun, 11/30/14, Brian Cox via Personal_Submersibles<br> <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>  wrote:<br>  <br>   Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>   To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>   Received: Sunday, November 30, 2014, 6:09 PM<br>   <br>   Seems like if you had the welds in<br>   the center the pressure would be distributed evenly<br> across<br>   the 1 1/2" land and hatch ring.<br>   <br>   Brian<br>   <br>   --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>   wrote:<br>   <br>   From: hank pronk via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>   To: Personal Submersibles General Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>   Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>   Date: Sun, 30 Nov 2014 10:55:45 -0800<br>   <br>   <br>   And that point is generally at the outer edge of the<br> land.<br>   Hank--------------------------------------------<br>   On Sun, 11/30/14, hank pronk via<br> Personal_Submersibles<br>   <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>   wrote:<br>   <br>    Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>    To: "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>    Received: Sunday, November 30, 2014, 1:54 PM<br>    <br>    You would think the weld<br>    point should be directly below the weld point where<br>  the<br>    hatch dome meets the ring.  This would transfer the<br>  load<br>    straight down.<br>    Hank<br>    --------------------------------------------<br>    On Sun, 11/30/14, Brian Cox via<br>    Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>    wrote:<br>    <br>     Subject: Re:<br>    [PSUBS-MAILIST] Gamma hatch<br>     To:<br>    "Personal Submersibles General Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     Received: Sunday, November 30, 2014, 1:51<br>    PM<br>     <br>     Good information Alec,<br>    thanks ! <br>     I'll have it turned<br>    afterward of course but no need to take<br>     off<br>    more metal than necessary.<br>     <br>     Brian <br>     <br>     ---<br>    <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>     wrote:<br>     <br>    <br>    From: Private via Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     To: Personal Submersibles General Discussion<br>    <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>     Date: Sun, 30 Nov 2014 13:30:18 -0500<br>     <br>     Careful! If you weld a ring<br>    on the way you describe with the<br>     weld in<br>    the middle, the weld shrinkage on either side of the<br>     head wall can bend the SS, leaving you with a<br>    curved SS<br>     ring. I can tell you from painful<br>    experience the amount of<br>     deflection can be<br>    amazing, we're not talking a few<br>    <br>    hundredths... In my case it was about a quarter<br>  inch.<br>    I'd<br>     recommend cutting the head so it<br>    meets the ring at the<br>     outside corner.<br>     <br>     Best,<br>     <br>     Alec<br>     <br>     <br>     <br>     > On Nov 30, 2014, at<br>    11:36 AM, Brian Cox via<br>    <br>    Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     wrote:<br>     > <br>    <br>    > Hank,<br>     >      I think I'm<br>    going to have a shop<br>     down the road turn<br>    that elliptical head so that the edge<br>     comes<br>    right in the middle of the bottom of the ring, still<br>     need to talk to the welder to see what kind of<br>    edge he<br>     wants.  With the hatch I'm<br>    thinking of welding a large<br>     pipe segment on<br>    there because there's nothing to grab onto<br>     for the lathe.<br>     > <br>     > Brian <br>     > <br>     > --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>     wrote:<br>     > <br>    <br>    > From: hank pronk via Personal_Submersibles<br>  <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > To: Personal Submersibles General<br>    Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > Subject: Re: [PSUBS-MAILIST] Gamma<br>    hatch<br>     > Date: Sun, 30 Nov 2014 07:57:38<br>    -0800<br>     > <br>     > Brian,<br>     > I will look forward to a picture of your<br>    CT and<br>     hatch.  In particular I would like<br>    to see how you<br>     transition from the<br>    elliptical portion to the 1 1/2in wide<br>    <br>    ring.<br>     > Hank<br>     ><br>    --------------------------------------------<br>     > On Sun, 11/30/14, Brian Cox via<br>    Personal_Submersibles<br>     <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     wrote:<br>     > <br>    <br>    > Subject: Re: [PSUBS-MAILIST] Gamma hatch<br>     > To: "Personal Submersibles General<br>    Discussion" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > Received: Sunday, November 30, 2014,<br>    10:44 AM<br>     > <br>     > Hi<br>    Hank,<br>     >            I bought two<br>     > stainless rings 1/2" thick by 1<br>    1/2" wide (18" id).<br>     Which<br>     > will be welded on to the conning tower<br>    and the hatch,<br>     then a<br>     ><br>    o ring groove put in the hatch side.  With the<br>     drop I<br>     > was able to get<br>    6  - 6" disks which I'm going to<br>    <br>    make<br>     > into electrical inserts that will<br>    go into two of my<br>     > viewports.  <br>     >   Conning tower getting welded today (<br>    8<br>     viewports) and<br>     > also<br>    working on the other viewports on the sphere, got<br>     two<br>     > welder friends that<br>    I have working on them, both 30+<br>     years<br>     > of commercial welding experience !<br>     > <br>     > Brian  <br>     > <br>     > --- <a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br>     > wrote:<br>     > <br>     > From: hank pronk via<br>    Personal_Submersibles <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > To: Personal Submersibles General<br>    Discussion <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > Subject: Re: [PSUBS-MAILIST] Gamma<br>    hatch<br>     > Date: Sun, 30 Nov 2014 05:39:19<br>    -0800<br>     > <br>     > Brian,<br>     > What did you do for the hatch seat on the<br>    conning<br>     > tower.  Is it stainless or<br>    did you do like Gamma<br>     has, a<br>     > layer of stainless welded on.  <br>     > Hank <br>     ><br>    --------------------------------------------<br>     > On Sat, 11/29/14, Brian Cox via<br>    Personal_Submersibles<br>     <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     > wrote:<br>     > <br>     >  Subject: [PSUBS-MAILIST] Gamma hatch<br>     >  To: "PSubs" <<a ymailto="mailto:personal_submersibles@psubs.org" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>     >  Received: Saturday, November 29, 2014,<br>    8:30 PM<br>     > <br>     > <br>    Hank,       <br>        <br>    <br>    >  Do you know how big the shaft is that goes<br>     through the top<br>     >  of<br>    your hatch?  Have you every had to<br>    <br>    disassemble it<br>     >  ?  My hatch is<br>    pretty much identical to<br>     Gamma's,<br>     >  I'm in the process of cutting in a<br>    little<br>     viewport in<br>     > <br>    and also that rotating hatch closure shaft /<br>     thru  hull<br>     > <br>    deal.   Seems like at least a 3/4"<br>    <br>    shaft<br>     >  would be in<br>    <br>    >  order. Brian<br>     > <br>    <br>    >  -----Inline Attachment Follows-----<br>    <br>    > <br>     > <br>    _______________________________________________<br>     >  Personal_Submersibles mailing list<br>     >  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>     > <br>     ><br>    _______________________________________________<br>     > Personal_Submersibles mailing list<br>     > <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    <br>    > <br>     ><br>    _______________________________________________<br>     > Personal_Submersibles mailing list<br>     > <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    <br>    > _______________________________________________<br>     > Personal_Submersibles mailing list<br>     > <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    <br>    > <br>     ><br>    _______________________________________________<br>     > Personal_Submersibles mailing list<br>     > <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    _______________________________________________<br>     Personal_Submersibles mailing list<br>     <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    <br>    _______________________________________________<br>     Personal_Submersibles mailing list<br>     <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>    _______________________________________________<br>    Personal_Submersibles mailing list<br>    <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>   Personal_Submersibles mailing list<br>   <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>   <br>   _______________________________________________<br>   Personal_Submersibles mailing list<br>   <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>  _______________________________________________<br>  Personal_Submersibles mailing list<br>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>  <br>  _______________________________________________<br>  Personal_Submersibles mailing list<br>  <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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> _______________________________________________<br> Personal_Submersibles mailing list<br> <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> <a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="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><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="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>