<div dir="ltr">Thanks Alan,<div>I had herd that an unbalanced reg would not give you it's set LP over ambient as the ambient psi increased so wanted to make sure.</div><div><br></div><div>Rick</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 25, 2017 at 9:32 PM, Alan via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Rick,</div><div>I don't think it will matter if it's either, because if the 1st stage is producing</div><div>round about 135psi above ambient, at your max dive depth of 350ft you</div><div>will have 135 + 175 = 310psi coming out of the Ist stage & entering your hull. </div><div>So a wild variation of pressure which will make any subtleties in regulator </div><div>type obsolete. </div><span class=""><div>Cheers Alan</div><div><br><div>Sent from my iPad</div></div></span><div><div class="h5"><div><br>On 26/04/2017, at 6:51 PM, Rick Patton via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.<wbr>org</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Alec and Brian,<div><br></div><div>Thanks for the response. What type of first stage are you using on the outside tanks and are the balanced or unbalanced?</div><div><br></div><div>Rick</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 25, 2017 at 4:37 PM, Brian Hughes via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.<wbr>org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">



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I relocated the twin air tanks outside of Harold with a 50 cf backup inside. O2 is now inside (20 cf tank) with pediatric regulator directly attached. I was uncomfortable running O2 any distance through hoses.
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