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<div>Brian,</div><div>I used to have a hatch leak before I fixed the problem, it was more annoying than anything. I would be real surprised if yours leaks based on your design. </div><div>Hank</div><div><br></div>
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On Tuesday, April 3, 2018, 8:48:50 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="yiv4674482281"><div style="font-family:Arial, sans-serif;font-size:10pt;"><div>Hi All, I did an experiment today with my hatch because I'm trying to get a handle on the sealing capability of my hatch. My hatch dogs are on a wheel that I turn to secure them, they are only a friction progressive seal, where the dogs push the hatch down tight from the underneath the rim of the hatch rim. I'm concerned that if I were lingering right at where the water level meets the hatch ring that there might not be enough pressure to seal and I would have a leak. I also wanted to see my cabin pressure gauge move as well so I brought a scuba tank inside the cabin to build up pressure inside. I used some ratchet straps to secure the hatch from the inside and was able to build up some positive pressure inside the cabin. Then I tried just holding onto the hatch closure wheel with my weight to see if I could get a pressure increase that way, which I did. Do you experienced submariners ever have an initial leak at the hatch before there is sufficient pressure to seal? It would be nice to do a negative pressure like Nuytco does but I can't figure out how to do that while I'm inside the sub.</div><div> </div><div>Brian</div><div> </div><div> </div></div></div>_______________________________________________<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></div>
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