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        <div>Emile, </div><div>I would think the only limitation would be the pressure in your tank. Below 6000ft with a bottle filled to 3000psi, nothing would come out of it anyway. </div><div>Lots of different first stage designs; maybe find a diagram of your particular model and study it to be sure! </div><div>What are you thinking of using it for? </div><div>Alan</div><div><br></div><div><br></div><div><br></div>
        
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                    On Wednesday, February 17, 2021, 10:49:55 AM GMT+13, via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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                <div><div id="ydpccc8568byiv4889935428"><div><div class="ydpccc8568byiv4889935428WordSection1"><p class="ydpccc8568byiv4889935428MsoNormal">Hi,</p><p class="ydpccc8568byiv4889935428MsoNormal">  </p><p class="ydpccc8568byiv4889935428MsoNormal"><span lang="EN-GB">Anyone knows till how deep you can use a first stage (Apeks) regulator? </span></p><p class="ydpccc8568byiv4889935428MsoNormal"><span lang="EN-GB">  </span></p><p class="ydpccc8568byiv4889935428MsoNormal"><span>Emile D.L. van Essen</span></p><p class="ydpccc8568byiv4889935428MsoNormal">  </p></div></div></div>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br></div>
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