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<DIV>Alec,</DIV>
<DIV>Could you tap a small block and weld/adhere it to the top of the can for
the entry point for your elbow? That would eliminate any protrusion into
the top of the can. You could substitute a T with a bleed for the elbow
and even add another fill point at either the top or the bottom.</DIV>
<DIV>Jim</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 6/14/2015 5:02:35 P.M. Central Daylight Time,
personal_submersibles@psubs.org writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2
face=Arial>Alec,<BR>Your plan is good also because the oil can expand from hot
weather with the bellows. I hope to be back in the water in a week or
so. Life and work is holding me up. <BR>I have my new trailer
ready, I built a hydraulic actuated idler wheel. The system raises the
trailer off the ball as well as allows the trailer to roll into the
water. I use a tow strap rather than an extendable bar because the ramps
here are long and steep enough.
<BR><BR>Hank<BR>--------------------------------------------<BR>On Sun,
6/14/15, Alec Smyth via Personal_Submersibles
<personal_submersibles@psubs.org> wrote:<BR><BR>Subject: Re:
[PSUBS-MAILIST] p trap<BR>To: "Personal Submersibles General Discussion"
<personal_submersibles@psubs.org><BR>Received: Sunday, June 14, 2015,
5:52 PM<BR><BR>Thanks<BR>Hank. Looking forward to hearing how it goes. For my
part I<BR>have trouble with the oil trap method because of the fact<BR>the
thrusters rotate. But I'm going to try the<BR>following. The old method is a
hose wound around the cans<BR>between an elbow at the top and one at the
bottom. To fill,<BR>I disconnect the tube from the top elbow and add oil
through<BR>the tube until it flows out the top. The problem is a little<BR>of
the elbow protrudes inside the can, even though I trimmed<BR>it, so its hard
to get every last bubble out. The plan is to<BR>replace the tube with a
plastic bellows bottle attached to<BR>the bottom elbow, and put in a set screw
in the hole where<BR>the top elbow is. This would do two thing;
significantly<BR>increase the compensation volume and sensitivity of
the<BR>bladder, and eliminate the protrusion caused of the elbow<BR>inside the
can. I'm pretty confident this will solve the<BR>issue, but the only problem
is I don't have any dive<BR>plans in the near future to find out.<BR>Let us
know how the trap approach<BR>goes!<BR>Best,<BR>Alec<BR>On Sun, Jun 14, 2015
at<BR>5:23 PM, hank pronk via Personal_Submersibles
<personal_submersibles@psubs.org><BR>wrote:<BR>Alec,<BR><BR>I just made
a discovery, I opened up the tail end of Gamma<BR>to install my experimental p
trap tube. I put a 1/8 ss<BR>tube down 24 inches inside my rear ballast
tank. The<BR>discovery was that there was pressure built up in the
drive<BR>shaft tube. I did not dive deep enough to create
this<BR>pressure, that means it is from sitting in the hot
sun<BR>(30C)<BR><BR>and expanding the oil. Maybe our problem is
expanding oil<BR>from hot weather then cooling at depth and sucking in
water.<BR>Well maybe this p trap idea is the
solution.<BR><BR>Hank<BR><BR><BR><BR><BR><BR>_______________________________________________<BR><BR>Personal_Submersibles
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