[PSUBS-MAILIST] Bouyancy

[via Personal_Submersibles]

Alec, here's a pic of the vent system on Snoopy at  Muskegon.  -Jim
 

 
 
In a message dated 6/12/2014 11:11:51 A.M. Central Daylight Time,  
personal_submersibles at psubs.org writes:

I find all this trouble with water blocking curious. I've never  
experienced one, either with the original thin tubing nor with the current  tubing. 
Even at extreme angles, venting just one tank, nothing blocks. I  presume this 
is just a matter of how much the lines slope up to the valves, or  maybe 
the K250 just has shorter lines and its easier to keep it sloping.


On Thu, Jun 12, 2014 at 11:03 AM, Dan H. via  Personal_Submersibles 
<_personal_submersibles at psubs.org_ (mailto:personal_submersibles at psubs.org) > wrote:


Scott,  
To clear the lines, I screwed a T onto each of the  through hulls that feed 
air to the MBTs.  (on the open end under the  MBTs)  Then I fashioned a 
piece of copper tubing that directs a stream  of air right into the MBT vent 
line but not actually connected to  it.   I put a restriction in the other end 
of the T to create  enough back pressure so the tubing emits a pretty good 
blast of air directed  at the vent port.  
 
To vent the MBTs, I open the conning tower vent valves  then give the tank 
blow valve a turn till I see the water blow up and out  the vents.  That 
seems to clear the lines and then it vents  properly. 
 It's not a great fix but it works.

 
----- Original Message ----- 
From: _swaters via  Personal_Submersibles_ 
(mailto:personal_submersibles at psubs.org)  
To: _Personal  Submersibles General Discussion_ 
(mailto:personal_submersibles at psubs.org)  

 
 
Sent: Wednesday, June 11, 2014 10:37  PM
Subject: Re: [PSUBS-MAILIST]  Bouyancy


Dan,
I have the exact same problem with hydrolocking in the vents. I have  to 
open the hatch and blow the water out with my mouth. Pain in the  butt.
Thanks,
Scott  Waters








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