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[hank pronk via Personal_Submersibles]

 Alan, those are my Christmas buddies.Hank
    On Wednesday, December 19, 2018, 7:04:35 PM MST, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hank,is that your family on the table?Alan
On 20/12/2018, at 11:15 AM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:


 Hi All,Here is a picture of my new air powered MBT vent valves.  I was inspired by Alec's valves.  The blue part is bolted to the outside of the MBT with the air cylinder inside the MBT .  When air pressure is applied the air cylinder pushes itself away from the blue vent disk.  Very simple to make and cheap.Hank
   ----- Forwarded Message ----- From: hank pronk <hanker_20032000 at yahoo.ca>To: hank pronk <hanker_20032000 at yahoo.ca>Sent: Wednesday, December 19, 2018, 3:10:08 PM MSTSubject: 
 



Sent from my iPhone  

<IMG_0250.jpg>

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