<font color='black' size='3' face='Arial, Helvetica, sans-serif'>By yourself?
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<div style="font-family:helvetica,arial;font-size:10pt;color:black">-----Original Message-----<br>
From: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Wed, Apr 17, 2019 9:57 pm<br>
Subject: Re: [PSUBS-MAILIST] pressure pump<br>
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<div style="font-family:Arial, sans-serif;font-size:10pt;"><font size="2">Yeah but what if I'm in the middle of the ocean?</font>
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<div><font size="2">Brian</font></div>
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<div><font size="2"><br clear="none"></font><br clear="none"><span style="font-size:10pt;">--- personal_submersibles@psubs.org wrote:</span><br clear="none"><br clear="none"><span style="font-size:10pt;">From: via Personal_Submersibles <personal_submersibles@psubs.org></span><br clear="none"><span style="font-size:10pt;">To: personal_submersibles@psubs.org</span><br clear="none"><span style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] pressure pump</span><br clear="none"><span style="font-size:10pt;">Date: Thu, 18 Apr 2019 01:40:49 +0000 (UTC)</span><br clear="none"><br clear="none"><font color="black" size="3" face="Arial, Helvetica, sans-serif" style="font-size:10pt;">Lot of trouble when your topside crew could just use a shop vacuum on a spare penetrator--pull the vacuum, close the valve, set the seats, and let it hold for a leak check--sounds like a good boat ramp <span style="font-size:12pt;">pre-dive prep to me</span>
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<div>Vance</div>
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<div style="font-family:helvetica, arial;font-size:10pt;color:black;">-----Original Message-----<br clear="none">
From: Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org><br clear="none">
To: PSubs <personal_submersibles@psubs.org><br clear="none">
Sent: Wed, Apr 17, 2019 9:12 pm<br clear="none">
Subject: [PSUBS-MAILIST] pressure pump<br clear="none">
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<div style="font-family:Arial, sans-serif;font-size:10pt;"><font size="2" style="font-family:Arial, sans-serif;">Hi All, </font>
<div><font size="2"><font face="Arial, sans-serif"> I have this little pressure pump for my internal ballast and I'm wondering if I could use it to pull a vacuum on my sub. I was thinking it would be nice to do before I submerge, to seal the hatch. The pump I have is a 100W 12volt pump that puts out 150psi and a flow of 8L / min. Would I need to expel water to pull the vacuum? My internal ballast is about 5 1/2 gallons . Not sure if the pump would pump air efficiently.</font></font></div>
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<div><font size="2"><font face="Arial, sans-serif">Brian</font></font></div>
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